问题
选择题
It is difficult for you to ______ what will happen in space without gravity.
A．depend on
B．have some idea of
C．keep from
D．equip with
答案
答案：C
短语辨析。depend on取决于，依赖；have some idea of对于……有一些想法；keep from 隐瞒，阻止； equip with 装备，以……配备。句意：没有重力很难阻止在太空中发生的事情。故选C。