Ifyouwanttohaveagoodmasteryo

发布时间：2020-07-28 04:28:09

If you want to have a good mastery of knowledge, you must ________ what you are being taught in class and make immediate use of it．A.depend onB.decide onC.concentrate onD.keep on

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C解析依句子的意思可知，本句要表达的是上课时应该注意力集中才能学好知识，所以
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