Ridofukuto Maya's Profile

1. Các dạng nước trong cây và vai trò của nó ? Nhu cầu của nước đối với thực vật ?

2. Rễ thực vật trên cạn có đặc điểm gì thích nghi với chức năng tìm nguồn nước, hấp thụ nước và ion khoáng ?

3. Hãy phân biệt cơ chế hấp thụ nước với cơ chế hấp thụ ion khoáng ở rễ ?

4. Hãy cho biết môi trường có ảnh hưởng đến quá trình hấp thụ nước và muối khoáng của rễ ntn ? Cho ví dụ ?
5. Hiện tượng gỉ nhựa, ứ giọt chứng minh sự tồn tại của lực đẩy của áp suất ở rễ ? Thế nào là áp suất rễ ? Có thể quan sát áp suất rễ qua những hiện tượng nào ?

 

viết thành chương trình khai báo sau:

z= { |x|+|y| nếu điểm (x,y) thuộc hình tròn bán kính r (r>0),tâm (a,b).

        x+y      trong trường hợp còn lại.

 

nhấn caps lock xong nhấn chữ số la mã thui

 

100 từ bạn

viết chương trình khai báo sau:

a) z={x² +y²  nếu x² + y² <= 1.

         x + y    nếu x² + y² > 1 và y >= x.

         0.5       nếu x² + y² >1 và y< x.

viết 1 đoạn văn kể về 1 cuộc thi mà bạn muốn tham gia và nêu lí do

56. must be finished right then.

57. if her mother in that bank.

58. has stopped smoking since last year.

59. could be solved easily.

I. Viết lại câu sao cho nghĩa không thay đổi.

1. My head seems to be on fire now.

> I feel as if........................

2. I had a feeling that I was walking in the air.

> I felt as through................

3. Bill doesn't work hard.

> I'd rather......................

4. He spend his money like a prince.

> he spend his money as if.............................

5. You speak like a prophet.

> You speak as through....................

6. He had no sooner drunk a cup of coffee than he began to feel drowsy.

> No sooner.......................

7. He should call me on the phone.

> It's time.............................

8. In countries like Britain the weather changes all time.

> In countries like Britain the weather..........................

9. I would like the school holiday to be longer.

> I wish....................................

10. If we had more rain, our crops would be better.

> ...........................................................

11. The crops would have been ruined, if the flood had risen higher.

> ..................................................................

12. If you had not sneezed, he wouldn't have known that we were.

> ................................................................

13. I last saw him when I was a student.

> I haven't ...................................

14. Do you have any experience of driving this kind of car?

> Have you ....................................................

15. During my dinner, the phone rang.

> While...........................................

16. David left the party before we arrived there.

> When ...............................................

17. In the middle of our sleep, there was a knock at the door.

> When ..........................................

18. James spoke to his lawyer before signing the contract.

> James didn't ...............................................

19. I haven't come there for two years.

> I last .........................................

20. I have studied E for seve years.

> I started ...............................

21. Steve started working for this company five years ago.

> Steve has..................................................

II. Tìm lỗi sai và sửa lỗi

1. If Jack had not been honest, he would have returned the money

    A            B                 C                    D

2. I'll be at the cinema on time unless I'll have to work overtime.

     A                             B           C       D

3. If I die, please to inform my wife.

          A        B    C     D

III. Chia dạng đúng của từ cho trong ngoặc.

1. The weather ( generally, get)              hot in July.

2. You must wake her up. She (sleep)                  soundly for 10 hours.

3. When I (go)               out, the sun (shine)                .

4. The light ( go)                out while I (have)                   tea.

5. When it (rain)                 , she (carry)                   an umbrella.

6. We (walk)                   to the station when it (begin)                    to rain.

7. he (teach)                       E for 2 months when he (live)                in Germany and ( work)                   as a journalist.

8. The house (burn)                fast, so we ( break)                   the window to get out.

9. He (eat)                       three sandwiches while you (talk)                  to him.

10. The servant (drop)                 two cups while she (wash up)                       last night; neither of them (break)      .

11. He (thank)​                 me for what I (do)           for him.

12. When I (arrive)        , the dinner (already, begin)                    .

13. In England, he soon (remember)                  all he (learn)                   .

14. They (tell)             him they (not meet)                 him before.

15. We (go)              out when the rain (stop)                    .

16. Wait until I (catch)                you .

17. I (be)              ready before you (count)              ten .

18. John must eat breakfast before he (go)                       out .

19. Miss helen (help)            you as soon as she (finish)               that letter.

20. he (tell)             you when you (get)          there.

21. She (not come)                 until you (be)            ready.

22. I (come)              and (see)              you before I (leave)                 for England.

 

I. Viết lại câu sao cho nghĩa không thay đổi.

1. My head seems to be on fire now.

> I feel as if........................

2. I had a feeling that I was walking in the air.

> I felt as through................

3. Bill doesn't work hard.

> I'd rather......................

4. He spend his money like a prince.

> he spend his money as if.............................

5. You speak like a prophet.

> You speak as through....................

6. He had no sooner drunk a cup of coffee than he began to feel drowsy.

> No sooner.......................

7. He should call me on the phone.

> It's time.............................

8. In countries like Britain the weather changes all time.

> In countries like Britain the weather..........................

9. I would like the school holiday to be longer.

> I wish....................................

10. If we had more rain, our crops would be better.

> ...........................................................

11. The crops would have been ruined, if the flood had risen higher.

> ..................................................................

12. If you had not sneezed, he wouldn't have known that we were.

> ................................................................

13. I last saw him when I was a student.

> I haven't ...................................

14. Do you have any experience of driving this kind of car?

> Have you ....................................................

15. During my dinner, the phone rang.

> While...........................................

16. David left the party before we arrived there.

> When ...............................................

17. In the middle of our sleep, there was a knock at the door.

> When ..........................................

18. James spoke to his lawyer before signing the contract.

> James didn't ...............................................

19. I haven't come there for two years.

> I last .........................................

20. I have studied E for seve years.

> I started ...............................

21. Steve started working for this company five years ago.

> Steve has..................................................

II. Tìm lỗi sai và sửa lỗi

1. If Jack had not been honest, he would have returned the money

    A            B                 C                    D

2. I'll be at the cinema on time unless I'll have to work overtime.

     A                             B           C       D

3. If I die, please to inform my wife.

          A        B    C     D

III. Chia dạng đúng của từ cho trong ngoặc.

1. The weather ( generally, get)              hot in July.

2. You must wake her up. She (sleep)                  soundly for 10 hours.

3. When I (go)               out, the sun (shine)                .

4. The light ( go)                out while I (have)                   tea.

5. When it (rain)                 , she (carry)                   an umbrella.

6. We (walk)                   to the station when it (begin)                    to rain.

7. he (teach)                       E for 2 months when he (live)                in Germany and ( work)                   as a journalist.

8. The house (burn)                fast, so we ( break)                   the window to get out.

9. He (eat)                       three sandwiches while you (talk)                  to him.

10. The servant (drop)                 two cups while she (wash up)                       last night; neither of them (break)      .

11. He (thank)​                 me for what I (do)           for him.

12. When I (arrive)        , the dinner (already, begin)                    .

13. In England, he soon (remember)                  all he (learn)                   .

14. They (tell)             him they (not meet)                 him before.

15. We (go)              out when the rain (stop)                    .

16. Wait until I (catch)                you .

17. I (be)              ready before you (count)              ten .

18. John must eat breakfast before he (go)                       out .

19. Miss helen (help)            you as soon as she (finish)               that letter.

20. he (tell)             you when you (get)          there.

21. She (not come)                 until you (be)            ready.

22. I (come)              and (see)              you before I (leave)                 for England.