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【单选题】
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【单选题】What is the function of the last paragraph?
A.
a summary of the whole passage
B.
a repetition of the views expressed
C.
a challenge to the views expressed
D.
an intensification of the theme of the essay
【单选题】What is the effect of the repetition of short sentences beginning with No in Paragraph 11?
A.
They suggest that the writer feels regret when he thinks about what he could have done.
B.
They contrast the differences between teaching and a "normal" male job.
C.
They show how hard it is to be a teacher.
D.
They emphasize a sense of freedom by pointing to things the writer doesn’t have to do.
【简答题】集成运放放大电路有两个输入端,分别为()输入端和()输入端,前者表示输出电压与输入电压相位(),后者表示输出电压与输入电压相位()。
【简答题】集成运算放大电路有两个输入端,分别称为 输入端和 输入端,前者表示输出电压与输入电压相位 ,后者表示输出电压与输入电压相位 。
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