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单选题
Many types of rock are _____ from volcanoes as solid, fragmentary material.
A

ejected

B

injected

C

propelled

D

flung


参考答案

参考解析
解析:
句意:很多石头都是从火山中喷发出来的固体碎片。eject驱逐,逐出;喷射。inject注射(药液等);注入。propel推进;激励;驱使。fling(尤指生气地)扔,掷;猛动(身体或身体部位);粗暴地(向某人)说。
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