If all the viruses on the planet were to disappears global catastrophe would_____,and the natural ecosystems of the earth would

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问题 If all the viruses on the planet were to disappears 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 本题空格处是说一场全球性的大灾难将会跟着发生。D项ensue“跟着发生,继起”符合题意。其他三项varnish“修饰,掩饰”;disperse“分散”;contaminate“污染”都不正确。
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