Unlike competitive running, race walkers must always keep some portion of their

游客2024-01-02 30

问题 Unlike competitive running, race walkers must always keep some portion of their feet in contact with the ground.

选项 A、run
B、runner
C、runners
D、running race

答案 C

解析本句意为：跟赛跑者不一样，竞走者必须始终使脚的某一部分接触地面。在此相比较的是赛跑者与竞走者，因此答案应在B、C中选择，又因主语 race walkers是复数，所以选项C是答案。

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