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题目内容
（华北水利水电大学英语）
The passage recommends those dealing with computers to<u style="font-size: 20px;"> </u>.
·be reasonably doubtful about them
·check all their answers
·substitute them for basic thinking
·use them for business purpose only
·be reasonably doubtful about them
·check all their answers
·substitute them for basic thinking
·use them for business purpose only
参考答案
