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【单选题】
电压串联负反馈可以 。A.
提高Ri和Ro。
B.
提高Ri，降低Ro。
C.
降低Ri，提高Ro。
D.
降低Ri和Ro 。
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反馈参考答案：
举一反三
【简答题】vi. change or remove the bad result of sth. 补偿;弥补
【单选题】Doctor：__________?Patient：I，m much better．My stomach problem is gone．Now I just feel hungry.
A.
Do you have anything to declare，Sir
B.
Good mornin9．May I help you
C.
How are you feeling today
D.
What seems to be the problem
【单选题】"I now declare the meeting open" serves _____ function.
A.
phatic
B.
performative
C.
expressive
D.
directive
【简答题】[ˈbʌdʒɪt] the money that is available to a person or an organization and a plan of how it will be spent over a period of time
【简答题】补偿,弥补 vi.
【单选题】According to what we have learned about functions of language,what does this sentence "I now declare the meeting open." function?
A.
informative function
B.
performative function
C.
interpersonal function
D.
emotive function
【单选题】At the end of the wedding, the priest would say: "I now _______ you man and wife."
A.
announce
B.
pronounce
C.
declare
D.
proclaim
【单选题】Doctor: ______ ? Patient: I'm much better. My stomach problem is gone. Now I just feel hungry.
A.
Do you have anything to declare, sir
B.
Good morning. May I help you
C.
How are you feeling today
D.
What seems to be the problem
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