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【单选题】
关于吗啡药理作用的下列叙述,错误的是A.
有镇痛作用
B.
有食欲抑制作用
C.
有镇咳作用
D.
有止泻作用
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反馈参考答案：
举一反三
【简答题】在扰动作用点与偏差信号之间加上积分环节能使静态误差降为( )。
【简答题】Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives. Giving someone all your love is never an ass...
【单选题】--We all know that paper is made ________ wood. -- Yes, we can also say that wood can be made ________ paper.
A.
of, from
B.
of, into
C.
from, into
D.
from, of
【简答题】Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives. It takes an hour to like someone, and a day ...
【简答题】阅读理解。 Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives. It takes an hour to like someone, and ...
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