12. In the cross-lake swimming race, a boat will be _____ in case of an emergency.
(A) standing by
(B) turning on
(C) getting on
(D) running down

答案：登入後查看
統計： A(27), B(4), C(1), D(5), E(0) #641360

詳解 (共 1 筆)

#1441493
在一個橫渡的泳賽中，（救生）船隻將在旁待命，以因應緊急狀況發生

standing by ：預備　

turning on：打開
getting on：接近
running down：撞沉
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