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【多选题】
胶壳刀开关的选用要注意( )
A.
刀开关的额定电压要大于或等于线路实际的最高电压
B.
作隔离开关用时,刀开关的额定电流要大于或等于线路实际的工作电流
C.
不适合直接控制5. 5KW以上的交流电动机
D.
刀开关直接控制5 5KW以下的交流电动机时,刀开关的额定容量要大于电动机的额定容量
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参考答案:
举一反三
【单选题】为了解糖尿病的控制状况及其并发症程度,糖尿病患者应不断自我监测和定期到医院就诊,使空腹血糖维持在()以下,餐后2h血糖维持在10.OmmoL/L以下,控制血压,调节血脂,避免糖尿病急性并发症及慢性并发症的发生和发展。
A.
5.OmmoVL
B.
6.OmmoVL
C.
7.OmmoVL
D.
8.OmmoVL
【单选题】在单效蒸发中,从溶液中蒸发1kg水,通常都需要( )1kg的加热蒸汽。
A.
等于
B.
小于
C.
大于
D.
不确定
【单选题】--- My plan is ______ videos at home. What are you going to do, Jenny? --- Well, I prefer ______movies at the cinema.
A.
to watch, see
B.
watching, see
C.
watching, to see
D.
to watch, to see
【单选题】------Did you attend Professor Johnson’s lecture about the evolution of videos and sound devices? ------I wish I __________. I __________ a job interview with the UN.
A.
had, had
B.
had, was having
C.
could, have had
D.
could have, were having
【单选题】在单效蒸发中,从溶液中蒸发1kg水,通常都需要( )1kg的加热蒸汽。
A.
等于
B.
小于
C.
不少于
D.
不多于
【单选题】在单效蒸发中,从溶液中蒸发1kg水,通常都需要( )1kg的加热蒸汽。
A.
等于;
B.
小于;
C.
不少于
【多选题】Which of the techniques below were mentioned in the videos as being beneficial in helping you to remember?
A.
As the videos mentioned, the best way to remember a list is to repeat it to yourself exactly eight times in a row.
B.
Remember numbers by associating them with memorable events, like the year a relative might have been born in, or associating them with something you are familiar with, such as running times or the numbers of knitting stitches that you might use when knitting a hat.
C.
As the videos mentioned, just keep repeating what you want to remember over and over in one session. The more you repeat all in one session, the better you will remember.
D.
Remember lists by creating meaningful groups that simplify the ideas.
【单选题】在单效蒸发中,从溶液中蒸发 1kg 水,通常都需要( ) 1kg 的加热蒸汽。
A.
等于
B.
小于
C.
不少于
D.
不确定
【单选题】“DELETE”键等同于下面()命令。
A.
复制
B.
粘贴
C.
删除
D.
重命名
【单选题】——Jessica, may you attend the summit held in sanya this Wednesday? ——I’m afraid not. I ______ with a client about his father’s will.
A.
am about to arrange
B.
shall be arranging
C.
would arrange
D.
would have arranged
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