公共英语一级

单选题When did scientists fly there to watch?

A．Before the volcano broke out．
B．As soon as the volcano broke out．
C．About four days after the volcano broke out．

参考答案：C进入在线模考
细节题。小岛开始喷发是14号，18号长到一定高度后，科学家们才赶过去。

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