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【简答题】
电路如图所示,若 U=+10V ,选 O 点作参考点,则 A 点电位 V A = ;若改选 A 点为零电位点,则 V A = , V O = 。
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反馈参考答案：
举一反三
【单选题】–Nice to meet you.? – ________.?
A.
Thank you
B.
The same to you
C.
Don't say so
D.
Nice to meet you，too
【单选题】– Nice to meet you, Mr. Green. I’m Sandy and this is Brad, Ken and Emily. – ______.
A.
See you later
B.
You’re welcome
C.
Pleased to meet you all
D.
You have a point there
【单选题】区分新旧两种不同范畴的民主主义革命的根本标志是
A.
革命的领导权掌握在无产阶级手中还是掌握在资产阶级手中
B.
近代中国的基本国情是半殖民地半封建性质还是封建社会性质
C.
近代中国社会主要矛盾是帝国主义和中华民族矛盾还是封建主义和人民大众矛盾
D.
中国革命是资产阶级民主革命还是无产阶级民主革命
【单选题】– Where are you traveling to this summer? -- ______________.
A.
Nice to meet you.
B.
Thanks.
C.
I don’t know yet.
D.
Fine.
【单选题】– hello，I’m Susan.Nice to meet you.--()
A.
Are you?
B.
Nice to meet you.
C.
Very nice.
【单选题】––Nice to meet you. I'm Bill. ––___
A.
How do you do?
B.
Fine,thank you. And you?
C.
How are you?
D.
Nice to meet, you.
【单选题】– Hello, I’m David Chen.Nice to meet you.-- ( )
A.
Are you?
B.
Nice to meet you too.
C.
Yes.
D.
Very nice.
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