Environmentalexpertsarethosewhodevo

发布时间：2020-07-27 07:23:41

Environmental experts are those who devote _______ to _______ nature and environment．A.them; protectingB.their; protectC.themselves; to protectD.themselves; protecting

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D解析devote oneself to doing sth．“全心全意做某事”；to为介词。
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