It is rather ________ that we still do not know how many species there are in the world today.
A.misleading B.embarrassing
C.boring D.demanding
It is rather ________ that we still do not know how many species there are in the world today.
A.misleading B.embarrassing
C.boring D.demanding
B 考查形容词辨析。句意:我们现在还不清楚世界上有多少种物种,确实令人不安。embarrassing“麻烦的;令人不安的”;misleading“误导的”;boring“令人厌烦的”;demanding“要求很高的”。