Air, water and food is ______ to good health.

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问题 Air, water and food is ______ to good health.

选项 A、vital
B、convenient
C、important
D、sufficient

答案A

解析 固定搭配题。be vital to,对……极端重要,后接名词,而常用be important for sb. to do sth.故选A。
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