2. 外语
  3. If all the viruses on the planet were to disappear,a global catastrophe would___,and the natural ecosystems of the earth would c

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

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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 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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