If all the viruses on the planet were to disappear, a global catastrophe would ______, and the natural ecosystems of the earth w

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问题 If all the viruses on the planet were to disappear, a global catastrophe would ______, and the natural ecosystems of the earth would collapse in a spectacular crash under burgeoning populations of insects.

选项 A、varnish
B、disperse
C、contaminate
D、ensue

答案D

解析 D项“ensue跟着发生,继起”符合题意。如:A hand grenade exploded by accident and I got lost in the ensuing confusion.(枚手榴弹意外地发生了爆炸,接着是片混乱,使我不知所措。)其他三项“A项varnish修饰,掩饰;B项disperse分散;C项contaminate污染”都不正确。本题空格处是说场全球性的大灾难将会跟着发生。因此D项为正确答案。
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