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【多选题】
开关电源的功率因数校正,根据采用的方法不同,可以分成 和 两种。
A.
无源功率因数校正
B.
有源功率因数校正
C.
单相功率因数校正
D.
三相功率因数校正
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参考答案:
举一反三
【单选题】在跨期套利中,买近卖远套利的盈利为( )
A.
B'-B
B.
B-B'
C.
B' * B
D.
B'/B
【单选题】按照沟通的方向来分,沟通可分为: 1上行沟通;2下行沟通;3平行沟通;4正式沟通
A.
①~③
B.
①~④
C.
①②④
D.
③④
【单选题】The man standing by the entrance in the uniform and funny hat is Richard Taylor. When guests arrive, he's usually the first person they meet. What is his job in the hotel?
A.
receptionist
B.
bellman
C.
doorman
【多选题】按沟通的方式可分为()
A.
组织内沟通
B.
正式沟通
C.
纵向沟通
D.
非正式沟通
【单选题】According to tipping etiquette, what kind of following behaviors is not acceptable?
A.
If you are using the service of a doorman repeatedly throughout your trip (say, a doorman) feel free to tip all at once.
B.
Keep several one-dollar bills handy in an accessible pocket.
C.
Ask for change while tipping
D.
Ask about tipping policy when you are going to book a hotel
【单选题】静物组合中有陶锅、汤勺、瓜菜、鸡蛋、菜碟等物品,主题名称为
A.
厨房一角
B.
书房一角
C.
农家一角
D.
体育室一角
【单选题】在跨期套利中,卖近买远的盈利为( ),买近卖远的盈利为( ),其中,B':平仓时,近月合约与远月合约的差价;B:开仓时,近月合约与远月合约的差价。
A.
B'-B ,B-B'
B.
B-B' ,B'*B
C.
B-B' ,B'-B
D.
B-B' ,B'/B
【单选题】Which of the following statements is NOT true?
A.
To be a qualified doorman, good manners of speech and gesture are quite necessary.
B.
Hotels will have some bellboys standing in front of the hotel to welcome guests.
C.
There is no need for the doorman to know so much about the guest's cultural background.
D.
A bellman will benefit from a better understanding of Western cultures.
【多选题】在跨期套利中,买近卖远套利的盈利为( );卖进买远的盈利为( ) 其中,B:开仓时,近月合约与远月合约的价差; B':平仓时,近月合约与远月合约的价差
A.
B'-B
B.
B-B'
C.
【简答题】Fill in the 6 blanks: Joan (J): Great! What a nice hotel! Abby (A): Fabulous! I love it! Doorman (D): Good morning, Madame. Welcome to Regency Hyatt. 1.___________ in the trunk? J: Yes, 2 big cases. T...
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