问题
选择题
Living in Western China certainly has its problems, _________obtaining water is not the least.
A．of which
B．where
C．as
D．whose
答案
答案：A
考查定语从句。句中先行词为problem，在定语从句作obtaining water of的宾语，故用关系词which。句意：生活在中国西部有它一定的问题，其中重要的一个就是取水问题。