问题
选择题
It is reported that two spacecrafts will ________ with each other in orbit.[ ]
A. link up
B. line up
C. pile up
D. tie up
答案
答案:A
It is reported that two spacecrafts will ________ with each other in orbit.[ ]
A. link up
B. line up
C. pile up
D. tie up
答案:A