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搜题
【判断题】
目标规划模型中,应同时包含绝对约束与目标约束。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】____________you play the violin?
A.
Are   
B.
Can    C.Is
【单选题】关于突触前易化的产生,下列哪一描述是正确的
A.
结构基础与突触前抑制完全不同
B.
到达突触前末梢的动作电位频率高
C.
有多个兴奋同时到达突触前末梢
D.
进入突触前末梢内的钙离子增多
E.
突触后膜有多个EPSP发生总和
【单选题】下列关于电突触的描述,不正确的是()
A.
又称缝隙连接
B.
突触前、后膜厚度基本相同
C.
高电阻通路
D.
快于大多数化学性突触
E.
可为细胞内游离Ca 2+ 浓度、细胞内pH、膜电压、钙调素和磷酸化作用等因素激活
【多选题】下列关于电突触传递的描述,不正确的是
A.
传递速度慢,潜伏期长
B.
结构基础是载体蛋白
C.
一般为单向传递
D.
可促进神经元的同步电活动
【单选题】___you play the violin?
A.
Are
B.
Can
C.
Is
D.
When
【单选题】---___ you play the violin ?
A.
-Yes ,I ___
B.
Can, do
C.
Do, can
D.
Can, can
E.
Are, am
【单选题】听力原文:W: David, you play the violin, don't you? M: I did for about 6 years, but 1 haven't practiced much since I came to college. Why do you ask? W: I'm organizing a performance on Wednesday night. We ...
A.
About a contest.
B.
About a meeting.
C.
About a course.
D.
About a party.
【单选题】下列关于电突触的描述,不正确的是()
A.
又称缝隙连接
B.
突触前、后膜厚度基本相同
C.
高电阻通路
D.
快于大多数化学性突触
E.
可为细胞内游离Ca浓度、细胞内pH、膜电压、钙调素和磷酸化作用等因素激活
【单选题】听力原文:W: David, you play the violin, don't you? M: I did for about 6 years, but I haven't practiced much since I came to college. Why do you ask? W: I'm organizing a performance on Wednesday night. We ...
A.
About a contest.
B.
About a course.
C.
About a meeting.
D.
About a party.
【单选题】(湖南省怀化市2014年高三第二次模拟考试)22. Tom, you play the violin so well. But I ______ you can play the violin.
A.
didn’t know
B.
don’t know
C.
hadn’t known
D.
haven’t known
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