問題詳情
【題組】49.Why doesn't it rain often in the desert?
(A) Because it is often a downpour.
(B) Because cactus roots are just below the surface.
(C) Because some cacti can store over 500 gallons of water.
(D) We are not told.
參考答案
答案：A
難度：困難0.272727
統計：A(3),B(2),C(2),D(4),E(0)