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【单选题】
如图所示电动机电气互锁正反转控制电路图,在用万用表检测控制电路自锁功能时,将表笔放至KM1触头两端:阻值显示为∞ ,错按下SB3后,阻值应为( )。A.
∞
B.
0
C.
KM1与KM2线圈的并联值(减半)
D.
KM1与KM2线圈的串联值(翻倍)
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举一反三
【单选题】Set the alarm clock if you want to be ________ time for the appointment.
A.
with
B.
on
C.
at
D.
along
【单选题】在不影响公司正常盈利的情况下,节约流动资产投资可以( )。
A.
提高总资产周转率,降低公司的资本收益率,增加企业价值
B.
降低总资产周转率,提高公司的资本收益率,增加企业价值
C.
提高总资产周转率,提高公司的资本收益率,增加企业价值
D.
提高总资产周转率,提高公司的资本收益率,降低企业价值
【简答题】要调查某商场销售的全部冰箱情况,试指出总体、个体是什么?试举出几个品质标志、数量标志、数量指标和质量指标的实例。
【简答题】He was late. That’s ________ he forgot to set the alarm clock.
【单选题】Man: You are late again, Miss Smith. Don't you have a watch or something? Woman: Yes, I thought that I had set the alarm clock for seven o'clock, but it rang an hour later. What does the woman mean?
A.
She didn't have a watch.
B.
She didn't hear the alarm clock.
C.
She forgot to set the alarm clock.
D.
The clock went wrong.
【简答题】Set the alarm clock, _______ you may not get up on time.
【简答题】要调查某商场销售的全部冰箱情况，试指出总体、个体是什么？试举若干品质标志、数量标志、数量指标和质量指标。
【简答题】The reason ________ he gave for being late was ________ he forgot to set the alarm clock.
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