According to the passage, how often can people donate blood for red blood cells

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CÂU HỎI KHÁC

• Indicate the word whose underlined part differs from the other three in pronunciation: cleaned, looked, opened, leaned
• Indicate the word whose underlined part differs from the other three in pronunciation: vision, decision, compulsion, provision
• Indicate the word that differs from the other three in the position of primary stress: volunteer, vocation, attendance, compulsory 
• Indicate the word that differs from the other three in the position of primary stress: organization, orphanage, mountainous,  time-consuming 
• Higher general education is based on theoretical expertise and might be contrasted with higher vocational education, which concentrating on both pract
• Despite modern medical technology, many diseases causing by viruses I are still not curable.
• It was suggested that Pedro studied the material more thoroughly before attempting to pass the exam.
• For many years people have wondered.................exists elsewhere in the universe.
• After feeling off..............for days, Tom finally went to see his  doctor.
• ............the phone rang later that night did Anna remember the
• Jeremys friends were fond of him.............because of his generosity.
• Some high school students often_____helping the disadvantaged or handicapped children.
• A home for children whose parents are dead is called  a(n)_____
• The local authority asked for a _____ contribution from the community to repair roads and bridges.
• Alan _____ is an official document stating that you have passed an examination, completed a course, or achieved some necessary qualifications.
• The use of computer aids in teaching, ..............the role of teachers is still very important
• After leaving high school, a student can apply for a position  either university _______a vocational school.
• She frequently volunteers_____extra work because she really likes her  job.
• Tom looks so frightened and upset. He_____something  terrible
• Two friends Diana and Anne are talking with each other about their  shopping.Diana:
• Mary invited her friend, Sarah, to have dinner out that night and Sarah accepted.Mary:
• A bank has promised a donation of $24 million toward the disaster  fund.
• In England, primary education is provided by state schools run by the government and by independent fee-paying schools.
• At first, there was a lot of opposition from the parents of the disabled children.
• My brother is an old hand at fixing household appliances. Im sure he can help   you.
• Im sure Luisa was very disappointed when she failed the  exam.
• 'You had better see a doctor if the sore throat does not clear up,' she said to me.
• Without her teachers advice, she would never have written such a good essay.
• Some kinds of fish live in fresh water. Others live in sea water.
• The student next to me kept chewing gum. That bothered me a lot.
• Could you stand the boredom and the frustration of not being
• That was the task that faced 14 volunteers when they started out on a bed-rest experiment being conducted
• Lying in a horizontal position was the best way of
• That's even tougher than it sounds, especially when you
• Surprisingly, everyone was in a good
• The word it refers
• According to the passage, how often can people donate blood for red blood cells
• All of the following are mentioned as potential negative reactions to transfusion EXCEPT
• What answer choice is closest in meaning to the word undetected
• What can the phrase 'go to great length' best replaced by?
• Based on the information in this passage, what can be inferred about blood transfused to infants and newborns
• What does the author imply in the passage
• Which of the following best describes the main idea of this  passage
• What is NOT stated in the passage about the top-scorers in the entrance exam?
• The word 'unconventional' in paragraph 2 could best be replaced by________.
• The author described Tran Nguyen Le Van in the third passage  as__________.
• The word 'them' in paragraph 3 refers to
• The word 'plague' in paragraph 4 is closest in meaning to________.
• According to the fourth paragraph, what is TRUE about the modern exam  system?
• What can be inferred from the  passage