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【单选题】
如果收音机不能正常工作,需要判断干电池是否已经报废,可取出一节干电池用多 用表来测量它的电动势,下列步骤中正确的是......( )。 1把多用表的选择开关置于交流500V挡置于OFF挡 2把多用表的红表笔和干电池的负极接触,黑表笔与正极接触 3把多用表的红表笔和电池的正极接触,黑表笔与负极接触 4在表盘上读出电压值 5把多用表的选择开关置于直流25V挡 6把多用表的选择开关置于直流5V挡A.
⑤③④①
B.
②⑤①④
C.
⑥③④①
D.
⑥②④①
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反馈参考答案：
举一反三
【简答题】One needs _____ to get rid of such bad habits as smoking and alcoholism. (control, self)
【判断题】Michelle needs to sell her idea to remodel their business waiting room to her boss. Michelle is more likely to succeed if she can base her argument on saving or earning money.
A.
正确
B.
错误
【单选题】Michelle needs to sell her idea to remodel their business waiting room to her boss. Michelle is more likely to succeed if she can base her argument on saving or earning money. ( )
A.
True
B.
False
【简答题】精馏操作有几种进料热状况?其对应的进料热状况参数为多少?
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