皮皮学，免费搜题
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【单选题】
轴突末稍释放神经递质与哪种离子内流有关( )
A.
钾离子
B.
钠离子
C.
钙离子
D.
氯离子
E.
氢离子
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参考解析：
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举一反三
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A.
凳子上跳落屈膝落地
B.
排球运动员跳起扣球
C.
足球运动员罚点球时弧圈球射门
D.
双膝向地上跪下
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【判断题】To stay at home safe, you needn’t have to make sure the spare key is difficult for a potential intruder to find.
A.
正确
B.
错误
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【单选题】FDDI的物理层被分为()两个子层。
A.
1
B.
2
C.
3
D.
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【简答题】There is a lot of wind today. It is today.
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【简答题】To stay safe at home, ( )A. Have emergency numbers easily accessible. B. Install an alarm system. C. Never tell someone that you’re home alone. D. Don’t go into the house if it looks like it's been...
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【判断题】客流是指在单位时间内,城市轨道线路上乘客流动人数和流动方向的总和
A.
正确
B.
错误
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【单选题】关于扭转外力偶下列说法不正确的是
A.
扭转外力偶绕杆的轴线，作用面与横截面平行
B.
可以由传动轴的传递功率和转数计算扭转外力偶矩的大小
C.
可以通过力对轴的矩计算扭转外力偶矩的大小
D.
扭转外力偶矩的正负号是按指向规定的
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【单选题】—How terrible it is today! — . A very bad day for swimming, isn't it?
A.
So it is
B.
So is it
C.
Nor it is
D.
Nor is it
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【简答题】There is a lot of cloud today. It is today.
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【单选题】Firms that stay at home to play it safe ________.
A.
protect themselves from competition at home
B.
gain a competitive edge against imports in their home markets
C.
successfully shield themselves from foreign competition
D.
risk losing their home markets
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【单选题】下面导致半月板损伤机会很大的动作是
A.
凳子上跳落屈膝落地
B.
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C.
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【简答题】There is a lot of wind today. It is today.
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【简答题】To stay safe at home, ( )A. Have emergency numbers easily accessible. B. Install an alarm system. C. Never tell someone that you’re home alone. D. Don’t go into the house if it looks like it's been...
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【单选题】关于扭转外力偶下列说法不正确的是
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扭转外力偶绕杆的轴线，作用面与横截面平行
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可以由传动轴的传递功率和转数计算扭转外力偶矩的大小
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查看完整题目与答案
【单选题】—How terrible it is today! — . A very bad day for swimming, isn't it?
A.
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B.
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C.
Nor it is
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【单选题】Firms that stay at home to play it safe ________.
A.
protect themselves from competition at home
B.
gain a competitive edge against imports in their home markets
C.
successfully shield themselves from foreign competition
D.
risk losing their home markets
查看完整题目与答案