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【单选题】
在下面四种电路中,信号输出电阻最小的电路是( )。
A.
共基放大电路
B.
射极输出器
C.
共射放大电路
D.
共源放大电路
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【单选题】下列说法正确的是( )。
A.
鱼石脂属于消沫药
B.
蓖麻油属于润滑性泻药
C.
乳酶生属于健胃药
D.
二甲硅油属于消沫药
E.
阿朴吗啡属于助消化药
【简答题】When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm and, in the winter especially, we were quite cut off from the outside world. As soon ...
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A.
重力
B.
压力
C.
弹力
D.
电磁吸力
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A.
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B.
错误
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【多选题】无明显肿块的乳房恶性肿瘤是
A.
乳管内乳头状癌
B.
乳癌
C.
湿疹样乳癌
D.
乳腺囊性增生病恶变
E.
炎性乳癌
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A.
炎性乳癌
B.
乳管内乳头状瘤
C.
乳癌
D.
乳房叶状囊肉瘤
E.
乳头湿疹样乳癌
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A.
intermittent
B.
repetitious
C.
replaceable
D.
tedious
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