The temperatures in the mountains can drop suddenly and it’s important to ensure

游客2023-11-13 66

问题 The temperatures in the mountains can drop suddenly and it’s important to ensure you are wearing______clothing.

选项 A、effective
B、efficient
C、sufficient
D、deficient

答案 C

解析 sufficient表示“充足的，足够的”，比enough正式，如：My father earns sufficient money to support us．我父亲挣的钱足以抚养我们。

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