問題詳情
12. Ship A and B are sister ships. Wind force 20 knots and 10 knots were encountered byship A and ship B respectively. How many times of forced was sustained by ship A compared byship B?
(A) 2 times.
(B) 3 times.
(C) 4 times.
(D) 6 times.
參考答案
答案：C
難度：適中0.5
統計：A(1),B(0),C(1),D(0),E(0)