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【单选题】
关于协调性子宫收缩乏力，下列说法正确的是A.
不宜静脉滴注催产素
B.
不易发生胎盘滞留
C.
子宫中段收缩比
D.
子宫收缩极性倒置
E.
产延长
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反馈参考答案：
举一反三
【单选题】晶体管三个电极的电流关系为（ ）。
A.
I C ＝ I E ＋ I B
B.
I E ＝ I C ＋ I B
C.
I B ＝ I E ＋ I C
D.
I E ＝ I B
【简答题】阅读理解。 Tom walked into a shop. It had a sign outside : 'Second-hand (旧的) clothes bought and sold. ' He was carrying an old pair of trousers and asked the owner of the shop, 'How much will you give me f...
【单选题】晶体三极管三个电极的电流 I E 、 I B 、 I C 的关系为: 。
A.
I E = I B = I C
B.
I C = I E + I B
C.
I E = I C + I B
D.
I B = I E + I C
【单选题】晶体三极管三个电极电流的关系为（）。
A.
I E =I C +I B
B.
I B =I C +I E
C.
I C =I E +I B
D.
I E =I C -I B
【简答题】阅读理解。 Tom walked into a shop. It had a sign out- side. 'Second-hand' clothes bought and sold.” He was carrying an old pair of trousers and asked the owner of the shop, 'How much will you give me for ...
【简答题】Tom had his pocket (pick) ______because of his carelessness.
【简答题】Tom walked into a shop . It had a sign outside : 'Second-hand (旧的) clothes bought and sold . 'He was carrying an old pair of trousers and asked the owner of the shop, 'How much will you give me for th...
【简答题】晶体三极管三个极电流之间的关系式为 I E = 。
【简答题】Tom walked into a shop . It bad a sign outside : "Second-hand ( 旧的) clothes bought and sold . "He was carrying an old pair of trousers and asked the owner of the shop, "How much will you give me for t...
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