The space station spins slowly in space to imitate pull of the earth’s gravity.A. the; /

问题补充：

The space station spins slowly in space to imitate pull of the earth’s gravity.

A. the; /

B. /; the

C. /; /

D. the; the

答案：

A. the; /

(答案→)B. /; the

C. /; /

D. the; the

解析：考查冠词，第一空不填，in space在太空，第二空填the，指的是地球重力的影响，句意是：太空站在太空慢慢地旋转，模仿地球重力的影响。选B。