The replacement of air-polluting cars by non-pollution cars will take some time.

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问题 The replacement of air-polluting cars by non-pollution cars will take some time.

选项 A、supplement
B、substitute
C、replenishment
D、complement

答案B

解析 replacement意为“代替品”，同substitute意思相同。其余选项 A意为“补充”；C意为“补给”；D意为“补给物”。

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职称英语综合类B级

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