pretest
n. (学习或做某事前的)预先测试,预先试验; v. 进行预测试,进行预试验
n.预备考试,预备调查v.进行预备考试
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n. (学习或做某事前的)预先测试,预先试验; v. 进行预测试,进行预试验
n.预备考试,预备调查v.进行预备考试
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