问题
选择题
As we know that the rocket ____ sending satellites or spaceships into space. [ ]
A. is used to
B. is used for
C. uses for
答案
答案：B
搜题请搜索小程序“爱下问搜题”
As we know that the rocket ____ sending satellites or spaceships into space. [ ]
A. is used to
B. is used for
C. uses for
答案：B