【題組】6. To be lifted off, a hang glider needs a wind speed of (A) 20 mph (B) 5 mph(C) 2 mph (D) lofty

問題詳情

【題組】6. To be lifted off, a hang glider needs a wind speed of
(A) 20 mph
(B) 5 mph
(C) 2 mph
(D) lofty wind.

答案：B
難度：適中0.581395
統計：A(15),B(25),C(1),D(0),E(0)