問題詳情
31. The National Recycling Coalition recently _____Congress to pass tax incentives that would encourage development of new applications for waste materials.
(A) calls up
(B) call over
(C) call for
(D) called on
參考答案
答案：C
難度：適中0.409201
統計：A(90),B(50),C(169),D(104),E(0)
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