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  3. At first, the professor was talking about the problem of education, he suddenly

At first, the professor was talking about the problem of education, he suddenly

游客2023-11-18  12
问题 At first, the professor was talking about the problem of education, he suddenly ______ to another topic.
选项 A、switched
B、committed
C、favored
D、transmitted
答案 A
解析 题型：词汇题。switch表示“打开”，比如：to switch the TV on开电视：to switch the radio off关收音机。还可以表示“转换，转变”，如：He switched the conversation from one subject to another.他转变话题。I used to cook on electricity, but I’ve switched to gas. 我过去用电烧饭，但现已换成用煤气了。commit则表示犯错误、犯罪等，比如：commit a crime, favor表示“喜欢、支持、关注”，如：favors bright colors偏爱亮色。transmit则表示“传输、传达”，如：Iron transmits heat。铁传热。
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