Online education develops rapidly. Traditional education will not be replaced completely. Both online and offline learning have

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问题 Online education develops rapidly. Traditional education will not be replaced completely. Both online and offline learning have their advantages. Traditional education triumphs in its face-to-face communication. That makes it easy for teachers to track a student’s learning outcome. Online education triumphs in its flexibility and convenience.

选项 A、correct
B、run on
C、choppy
D、comma splice

答案C

解析 过度使用简单句,无条理。需改成并列句或复杂句。
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