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【单选题】
一台三相异步电动机电源频率为50Hz,电机转速为1475转/分,则转差为()
A.
250转/分
B.
25转/分
C.
1500转/分
D.
500转/分
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参考答案:
举一反三
【简答题】将“飞机——箱子”想象为“飞机穿过箱子”的记忆术是( )。
【多选题】少年时的袁隆平就立下志愿要做一个使中国富强的人。他对自然规律很感兴趣,于是义无反顾地考入农学系。从此踏上为解决中国粮食的自给自足问题而努力的道路。据不完全统计,袁隆平院士培育的杂交水稻自 1979 年以来,累计增产 3500 亿公斤,产生了巨大的经济和社会效益。他的杰出成就不仅属于中国,而且影响了世界。 1. ( 多选题 ) 袁隆平的人生经历和成就证明了 ( ) 。
A.
人生选择必须坚持从客观实际出发
B.
人生选择要自觉地服从社会和人民的需要
C.
人类能以自己的创造性活动创造客观规律
D.
走好人生路要有远大理想,也要脚踏实地
【简答题】将“飞机—箱子”想象为“飞机穿过箱子”运用的是_________。
【单选题】听力原文:W: I am sorry I am having trouble reading my notes. Did you say three lunches in that first paragraph? M: No. I said free lunches, the children don’t have to pay for them. And there are many lunc...
A.
It involved a few lunches.
B.
There were free lunches.
C.
There were three lunches,
D.
There are more than free lunches.
【判断题】DNS域名系统作为可以将域名和ip地址相互映射的一个分布式数据库,能够使人更方便的访问互联网。
A.
正确
B.
错误
【判断题】无形资产的摊销,一般情况下应借记“管理费用”账户,贷记“累计摊销”账户。
A.
正确
B.
错误
【单选题】A: I haven't been driving as fast as the other cars.B: ______
A.
Sorry, madam. I am sorry there is something wrong with your car.
B.
Don't be arguing with me. I'll kill you if you drive so far next time on the superhighway.
C.
The other cars? Different cars have to observe different traffic rules, you know.
D.
I'm sorry, madam, your speed limit's fifty-five miles per hour. I have to give you a ticket.
【判断题】电气控制系统图是用图形符号和文字符号表达、代表各种电器元件及其基本名称和编号的。( )
A.
正确
B.
错误
【单选题】听力原文:W: I am sorry I am having trouble reading my notes, Did you say three lunches in that first paragraph? M: No. I said free lunches, the children don't have to pay for them, And there are many lunc...
A.
It involved a few lunches.
B.
There were free lunches.
C.
There were three lunches.
D.
There were more than free lunches.
【单选题】You should say 'I am sorry ' when you knock ______somebody.
A.
at
B.
in
C.
to
D.
into
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