题库
题库
A．made
B．controlled
C．kept
D．fixed
| 单选题 | According to the passage，which of the following about Qian Xuesen is NOT true? | 查看答案 |
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| 单选题 | What does the underlined word “forerunner”(Paragraph 6) probably mean? | 查看答案 |
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| 单选题 | It can be inferred from Paragraph 6 that ________. | 查看答案 |
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| 单选题 | Which of the following is about the five countries that launched manmade satellite independently before 1970? |
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| 单选题 | When did Qian xuesen begin to study in Massachusetts Institute of Technology? | 查看答案 |