The mechanisms (at) work (are manifest) in the tendency for such physical activity (to) utilize the (potential) harmful constitu

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问题 The mechanisms (at) work (are manifest) in the tendency for such physical activity (to) utilize the (potential) harmful constituents of the stress response.

选项 A、at
B、are manifest
C、to
D、potential

答案D

解析 改为potentially。本题考查词性的正确运用。英语语法规则规定,形容词应由副词来修饰,而此题中的形容词harmful却是由形容词potential修饰,因此应将它改为副词potentially。
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