GRE考试

根据网考网考试中心的统计分析，以下试题在2018/5/30日GRE考试习题练习中，答错率较高，为：87%
【单选题】 Running a marathon is an ______ task, taking months of both physical and mental preparation and training before actually running a grueling 26.2 miles.
A．(A) arduous
B．(B) ambiguous
C．(C) involuntary
D．(D) eloquent
E．(E) overt

网考网参考答案：A，答错率：87%
网考网试题解析：
The context of the sentence indicates that running a marathon is quite challenging and takes a lot of preparation. Arduous means "difficult or demanding great effort," which best fits the context of the sentence. 查看试题解析出处>>