GRE考试

根据网考网考试中心的统计分析，以下试题在2019/3/13日GRE考试习题练习中，答错率较高，为：56%
【单选题】It may be ------- to obtain soap that is not antibacterial, given its ------- as a household cleansing product, but according to a new study, such products may be a waste of time.


A．difficult... ubiquity
B．imprudent... weakness
C．traditional ... relevance
D．revolutionary ... innovation
E．(E) extravagant... expense