问题
选择题
The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.
A．in
B．beyond
C．against
D．at
答案
答案：C
题目分析：in在……里面；beyond在……后面；against斜靠着……；at在……。句意：飞行过程中，宇航员不得不斜靠着宇宙飞船的地板躺着以抵御巨大的压力。
