問題詳情
【題組】15. According to paragraph 2, the construction of the nest allows water to
(A) provide a beneficial source of humidityin the nest
(B) loosen the materials at the bottom of thenest
(C) keep the nest in a clean condition
(D) touch the bottom of the eggs
參考答案
答案：A
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)