问题
选择题
Polar explorers have to be extremely _____ to bear the climate and other hardships.
A.tough
B.rough
C.difficult
D.brave
答案
答案:A
考查形容词辨析。句意“极地探险家应该极其坚强,以承受极端的气候和其它困难。”A“坚强的,不屈不挠的”;B“粗糙的”;C“困难的”;D“勇敢的”。故选A。