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【单选题】
总成绩由哪几部分组成,分别占多少比例?()
A.
课程考试成绩*60%+平时成绩*10%+网上及阶段练习作业*30%
B.
课程考试成绩*60%+平时成绩*10%+网上及阶段练习作业*15%+答疑论坛发帖数*5%+课件点击次数*10%+阅读课件时长(参考)
C.
课程考试成绩*75%+平时成绩*10%+网上及阶段练习作业*15%
D.
课程考试成绩*60%+平时成绩*10%+网上及阶段练习作业*25%+答疑论坛发帖数*5%
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参考答案:
举一反三
【单选题】所谓制动,就是给电动机一个与转动方向( )的转矩使它迅速停转(或限制其转速)。
A.
相同
B.
相反
【多选题】Which are the two commonest layout of the business letter?
A.
the Blocked letter Style
B.
First line suspension
C.
the Semi-blocked Letter Style
D.
Right alignment
【单选题】薤白治疗胸痹,主要取其
A.
通阳散结
B.
消痞散结
C.
行气散结
D.
温阳散结
E.
补阳散结
【单选题】所谓制动,就是给电动机一个与转动方向( )的转矩使它迅速停转。
A.
相差90度
B.
相同
C.
相反
【单选题】题: 所谓制动,就是给电动机一个与转动方向()的转矩,使它迅速仃转或限制其转速
A.
相同
B.
同向
C.
相反
D.
垂直
【判断题】若单位反馈系统的开环频率特性具有低频高增益高频低增益的特点,则系统闭环对数幅频特性低频部分就是0分贝线,高频部分与开环频率特性重合。
A.
正确
B.
错误
【多选题】Two major purposes of an invitation letter are________.
A.
to invite the receiver of the letter to the event
B.
to inform the receiver of the conference activities
C.
to show your respect and appreciation for the receiver
D.
to ensure that the person receiving the letter is going to attend
【单选题】ABCDEFGH Which letter is two to the left of the letter immediately to the right of the letter that is three to the right of the letter immediately to the left of the letter D?
A.
B
B.
D
C.
E
D.
H
【判断题】There are two steps for the rite of Naji
A.
正确
B.
错误
【单选题】I have to write __ letter this evening.
A.
much
B.
another
C.
two another
D.
two more
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