单选题：When Sanbonmatsu and his colleagues conducted their research

题目分类：英语
题目类型：单选题
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题目内容：

When Sanbonmatsu and his colleagues conducted their research， they________. A．assessed the multitasking ability of the students
B．evaluated the academic achievements of the students
C．analyzed the effects of the participants’ tricky mental tasks
D．measured the changes of the students’ understanding ability

参考答案：

答案解析：

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分类：英语题型：单选题