题目内容
To be an astronaut, you must not only be strong in mind, but also be sound mentally and___.
A.eventually | B.willingly | C.potentially | D.physically |
D
解析

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题目内容
To be an astronaut, you must not only be strong in mind, but also be sound mentally and___.
A.eventually | B.willingly | C.potentially | D.physically |
D
解析