Scinentists jumped to the rescue with some distinctly shaky evidence to the effec

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Scinentists jumped to the rescue with some distinctly shaky evidence to the effect that insects would eat us up if birds failed to control them。

参考答案:

Scinentists jumped to the rescue with some distinctly shaky evidence to the effect that insects would eat us up if birds failed to control them。  解析:句子的主干是“scientists jumped to the rescue with some distinctly shaky evidence”,后接that 引导的同位语从句。If引导的条件状语从句修饰t