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【多选题】
有关三极管的描述正确的是( )
A.
有2个PN结
B.
有三个电极
C.
有三个工作区域
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举一反三
【单选题】变质畜肉类常引起的食物中毒是
A.
沙门菌中毒
B.
副溶血性弧菌中毒
C.
肉毒毒素中毒
D.
葡萄球菌肠毒素中毒
E.
组胺中毒
【简答题】副溶血性弧菌食物中毒常见中毒食品为
【简答题】Gabrielle "Coco" Chanel was born in western France in 1883. Unlike her glamorous image, she did not have a happy childhood. According to her version of her life story, at the age of 12 her mother died...
【简答题】Her eyes were open and blue so she was at least two weeks old. Every bone showed through her paper-thin skin. She was in the last stage of starvation and not responding. She had been abandoned with he...
【单选题】Mrs. Gaskell's novel _______ marks a turning point in her literary creation, for in this novel she abandoned critical realism for a kind of writing acceptable to the bourgeois public.
A.
Mary Barton
B.
North and South
C.
Cranford
D.
Ruth
【单选题】在卧式镗床上用工作台进给镗孔时,纵向导轨在水平面内的直线性误差,会使被加工孔的中心线产生( )误差。
A.
直线度
B.
同轴度
C.
圆度
D.
平面度
【判断题】所有的因特网标准都是以RFC文档的形式在因特网上发表。
A.
正确
B.
错误
【简答题】Mrs. Gaskell's novel ____________ marks a turning point in her literary creation, for in this novel she abandoned critical realism for a kind of writing acceptable to the bourgeois public.
【多选题】下列诗句,出自唐玄宗和杨贵妃的爱情典故的是( )
A.
“何事秋风悲画扇”
B.
“骊山语罢清宵半”
C.
“泪雨霖铃终不怨”
D.
“比翼连枝当日愿”
【单选题】多级放大电路(不失真)的放大倍数约等于( )。
A.
单级放大倍数相加
B.
单级放大倍数相乘
C.
单级放大倍数相减
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