yang liwei is the first chinese gengrally considered ___ in space.yang liwei is the first chinese gengrally considered ___ in space. A.to have travelled B.travel C. having traavel D.to travel选什么?为什么?

问题描述:

yang liwei is the first chinese gengrally considered ___ in space.
yang liwei is the first chinese gengrally considered ___ in space.
A.to have travelled B.travel C. having traavel D.to travel
选什么?为什么?