問題詳情
17. Please pack the boxes in wooden cases, five boxes per case which must have fireproof ____ waterproof linings.
(A) with
(B) so
(C) and
(D) but
參考答案
答案：A
難度：困難0.258656
統計：A(127),B(13),C(322),D(29),E(0)
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