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【单选题】
共模信号是指（）。A.
大小相等、极性相同的信号
B.
大小相等、极性相反的信号
C.
极性相反的任意信号
D.
极性相同的任意信号
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【简答题】One night a Chinese student majoring in English sat on the steps of the foreign students’ residence and talked with two young male foreign students, one German and one American. They did not speak a w...
【单选题】听力原文：Narrator Listen to part of a conversation between two students. Maggie Hey, Jim, what a coincidence to see you here! Long time no see! Jim Yeah, me too. Hey, just as old friends, I gotta tell you...
A.
The root of Jim's health problems.
B.
The woman's problems with her workaholic professor.
C.
Jim's relationship with his own professor.
D.
Problems that Jim and the woman have with their workloads.
【单选题】Two students did not__ for class today.
A.
show up
B.
show off
C.
show in
D.
show out
【简答题】The articulatory apparatus of a human being are contained in three important cavities: the pharyngeal cavity, the o_______ cavity and the nasal cavity.
【简答题】收入调整项目有： A视同销售收入 B投资收益 C公允价值变动净损益 D不征税收
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