皮皮学，免费搜题
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【单选题】
听力原文：M: I'd like to get a refund on this. It's my Christmas present from a friend, but I've already got the same thing. Here is the receipt. W: All right. Please fill in this form. and sign your name. Q: What does the man mean to do? (19)A.
Sign his name for the fan.
B.
Fill in an application form.
C.
Exchange gifts with his friends.
D.
Get a purchase refunded.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】茎有哪些功能?
【单选题】The circuit element used to model the current-resisting behavior of a material is .
A.
the capacitor
B.
the inductor
C.
the dependent source
D.
the resistor
【简答题】茎的生理功能主要有哪些？
【简答题】蔗茎有哪些功能？
【单选题】There will be a potential difference ______ the two ends of the circuit element in question.
A.
in
B.
between
C.
on
【单选题】With load convention, where the current enters the positive terminal of the circuit element, if Ω is positive then positive reactive power is absorbed.
A.
True
B.
False
【简答题】茎有哪些主要功能?
【简答题】茎有哪些生理功能?
【单选题】With generator convention, where the current leaves the positive terminal of the circuit element, if P is positive then positive real power is delivered.
A.
False
B.
True
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