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【判断题】
共射放大电路的上限截止频率由晶体管结电容及电容所在回路的电阻共同决定。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】Mannie gave Donna his excuse for being late, but Donna seemed incredulous.This means
A.
Donna believed him.
B.
Donna ignored him.
C.
Donna did not believed him.
D.
Donna did not ignore him.
【单选题】No one _________of it. [ ]
A.
dared to speaking
B.
dared speak
C.
can dared speak
D.
dare speaking.
【简答题】Donna Smith
【单选题】Donna is 5 feet, 2 inches tall. Donna's sister is 5 feet, 6 inches.
A.
Donna isn't as tall as her sister
B.
Donna's sister is as tall as Donna
【简答题】Donna dared not settle herself too comfortably into her seat in case she __________ . (doze)
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