问题描述:
Zhai Zhigang is ( )Chinese astronaut.He has ever walked in ( )space
A.a;a B.the'the C.a;/ D.an;the
in space和in the space
A.a;a B.the'the C.a;/ D.an;the
in space和in the space
问题解答:
我来补答展开全文阅读