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Câu hỏi:
Why were early ballpoint pens not produced commercially?
- A. They used too much ink.
- B. They didn't work properly.
- C. It cost too much to produce them.
- D. Nobody wanted to buy one.
Lời giải tham khảo:
Đáp án đúng: B
Kiến thức: Đọc hiểu
Giải thích:
Tại sao bút bi thời kỳ đầu không được sản xuất thương mại?
A. Chúng đã dùng quá nhiều mực.
B. Chúng đã không hoạt động đúng cách.
C. Tốn quá nhiều chi phí để sản xuất chúng.
D. Không ai muốn mua một cái.
Thông tin: However, his pen was never produced, and efforts by other people to produce a commercially successful one failed too. The main problem was with the ink. If it was too thin, the ink leaked out of the pen. If it was too thick, it didn't come out of the pen at all.
Tạm dịch: Tuy nhiên, chiếc bút của ông không bao giờ được sản xuất và những nỗ lực của những người khác để tạo ra một chiếc bút thành công về mặt thương mại cũng thất bại. Vấn đề chính là mực. Nếu quá loãng, mực sẽ chảy ra khỏi bút. Nếu nó quá đặc, nó không chảy khỏi bút chút nào.
Choose B.
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