He is getting better ______ degrees, but it will be some time before he is completely well.

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问题 He is getting better ______ degrees, but it will be some time before he is completely well.

选项 A、in
B、by
C、to
D、of

答案B

解析 by degrees意为“渐渐地”，其中介词by表示连续或反复的意思，我们所熟悉的还有：little by little，day by day，step by step等。其他三个介词虽然都可以和degree搭配使用，但所表达的意思不符合本题。

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专业英语四级

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