题目内容：

When an earthquake happens,we should stay cool A.as well B.now that C.at first D.above all
为什么是D说一下二者用法,

优质解答

When an earthquake happen,_______,we should stay cool.答案：D.本题考查短语辨析：as well也；now that既然；at first起初,一开始；above all尤为重要的是,首先；依据句意理解,则选项D符合题意.句意：当地震发生...