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A. 5:45 a.m. |
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Mall
[填空题]When did the first manned spacecraft leave earth for the moon
[单项选择]Every device ( ) in the spacecraft must be designed and made with great care so as to be sure that nothing goes wrong in operation.
A. to be fitted B. fitted C. fitting D. to have been fitted [填空题]Before they are actually sent up in a spacecraft,______(宇航员需经受各种各样的测试).
[填空题]The launching of Shenzhou VI spacecraft was __________ (具有历史意义的事件).
我来回答: 提交
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