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【单选题】
Before using your new pressure cooker, read the following______ carefully.A.
publications
B.
instructions
C.
announcement
D.
advertisement
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【简答题】减弱电离层影响的措施有哪些?
【多选题】经典条件反射是( )。
A.
将某种无关刺激物与非条件刺激物多次结合后形成的暂时眭神经联结
B.
用奖励性手段强化有机体的某种反应行为使其出现的概率增加的现象
C.
某种情景刺激下出现的行为能得到强化而被保留下来的现象
D.
条件刺激与无条件刺激在时间上建立联结关系而形成的
【多选题】经典条件反射是( )
A.
将某种无关刺激物与非条件刺激物多次结合后形成的暂时性神经联结
B.
用奖励性手段强化有机体的某种反应行为使其出现的概率增加的现象
C.
某种情景刺激下出现的行为能得到强化而被保留下来的现象
D.
条件刺激与无条件刺激在时间上建立联结关系而形成的
【单选题】夏季，3岁小儿突然高热，T 40℃，惊厥1次。体检：神清，面色红，咽红，心、肺、腹(一)，神经系统未见异常，最可能的诊断是 ( )
A.
高热惊厥
B.
中毒性痢疾
C.
流行性脑膜炎
D.
结核性脑膜炎
E.
脑脓肿
【简答题】什么是电离层延迟？以及减弱电离层影响的措施有哪些？
【简答题】Like most people, I was brought up to look upon life as a process of getting. It was not until in my late thirties that I made this important discovery: giving-away makes life so much more exciting. O...
【单选题】Like most people, I was brought up to look upon life as a process of getting. (76) It was not until in my late thirties that I made this important discovery: giving-away makes life so much more exciti...
A.
the author did not understand the importance of giving until he was in late thirties
B.
the author was like most people who were mostly receivers rather than givers
C.
the author received the same education as most people during his childhood
D.
the author liked most people as they looked upon life as a process of getting
【单选题】在完整动物机体建立条件反射的关键步骤是()
A.
存在无关刺激
B.
干扰因素与非条件刺激在时间上多次结合
C.
没有干扰刺激
D.
非条件刺激出现在无关刺激之前
E.
无关刺激与非条件刺激在时间上多次结合
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