問題詳情
24. Scientists believe that if we don’t ____, polar bears will be extinct in western Hudson Bay by 2040.
(A) take action
(B) keep them at bay
(C) show them the ropes
(D) know them inside and out
(A) take action
(B) keep them at bay
(C) show them the ropes
(D) know them inside and out
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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