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【单选题】
苯妥英钠发挥抗癫痫作用主要通过A.
直接抑制病灶异常放电
B.
稳定神经细胞膜，阻止异常放电的扩散
C.
抑制脊髓神经元
D.
肌肉松弛作用
E.
对中枢神经系统普遍抑制
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举一反三
【单选题】What did the passage try to tell us?
A.
The boy was too shy to ask the girl out.
B.
The boy loved music so much.
C.
There was love at first sight.
D.
Both the boy and the girl missed their love.
【单选题】It remains to be seen what effects the new educational reform will _________ students.
A.
make on
B.
take on
C.
have on
D.
get on
【简答题】caused the accident remains unknown.（That/What）A. What
【简答题】函数z=2x 2 +y 2 在点(1，1)沿该点的梯度方向的方向导数为______
【简答题】PNP 型晶体三极管工作放大区时,发射结和集电结的工作状态() A、 发射结和集电结都正偏 B 、发射结和集电结都反偏 C 、发射结正偏、集电结反偏 D 、发射结反偏、集电结正偏
【简答题】Both she and I ____watching TV when he came back. (was, were)
【单选题】What is the question that remains to be studied?
A.
How to explain the long-term effects of the training.
B.
How to better improve older people's mental skills.
C.
How to attract more older people to take part in the training.
D.
How to increase older people's awareness of mental health.
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