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【单选题】People who do sleep research tell us that a person is a sort of "information processor." We have two ways to use the information we get each day. The first process is used when we are awake. It takes...
A.
people are likely to sleepwalk
B.
people become mentally active
C.
people often wake up
D.
people might do odd things
【单选题】子宫收缩力异常指的是
A.
节律性、极性、强度均不正常
B.
节律性、对称性正常但失去正常强度
C.
对称性、极性正常，节律性异常
D.
节律性正常，对称性和极性异常
E.
节律性、对称性、极性及宫缩的频率和强度均异常
【单选题】心肌不会发生强直收缩的原因是
A.
心肌具有自动节律性
B.
兴奋后的有效不应期特别长
C.
不受躯体运动神经的支配
D.
心肌收缩形式是“全或无”式
E.
细胞内钙离子储存量少