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【简答题】
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参考答案：
举一反三
【单选题】A person with myasthenia gravis notes increased muscle strength when he is treated with an acetylcholinesterase (AChE) inhibitor. The basis for his improvement is increased
A.
Amount of acetylcholine (ACh) released from motor nerves
B.
Levels of ACh at the muscle end plates
C.
Number of ACh receptors on the muscle end plates
D.
degradation of ACh at cleft of neuromuscular junction
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【单选题】A 42-year-old man with myasthenia gravis notes increased muscle strength when he is treated with an acetylcholinesterase (ACHE) inhibitor. The basis for his improvement is increased
A.
amount of acetylcholine (Ach) released from motor nerves
B.
levels of Ach at the muscle end plates
C.
number of Ach receptors on the muscle end plates
D.
amount of norepinephrine released from motor nerves
E.
synthesis of norepinephrine in motor nerves
查看完整题目与答案
【多选题】菜肴烹调工艺的关键控制点有( )
A.
原料的预处理
B.
烹调温度
C.
烹调时间
D.
保存条件
E.
后处理
查看完整题目与答案
【判断题】Hypertropy refers to the increased size of a muscle.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Contractions called _____ occur whenever the forces applied to a muscle are increased, but the muscle does not appear to be moving.
A.
isotonic
B.
isometric
C.
tetanic
D.
summation contractions
查看完整题目与答案
【单选题】The amount of force produced by a skeletal muscle can be increased by
A.
Increasing extracellular Mg 2+
B.
Decreasing extracellular Ca 2+
C.
Increasing the activity of acetylcholine esterase
D.
Decreasing the interval between contractions
E.
Increasing the preload beyond 2.2 µm
查看完整题目与答案
【简答题】题9一19图所示两个相同的圆柱体，质量m=6．35kg，半径r=127mm，绳子连接如图所示。当t=0时将系统由静止释放。 试求： (1)在t=3s时圆柱体B的中心速度； (2)两个圆柱间绳子的拉力。
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【单选题】如图9-30所示的MAN-B&W-S-MC/MCE主机操作系统中,管19的信号表示____。
A.
主机启动信号
B.
主机盘车机脱开信号
C.
主机换向完成信号
D.
主机停油控制信号
查看完整题目与答案
【单选题】如图19所示,编号为甲的房间应铺设几块预制板( )。
A.
3
B.
6
C.
9
D.
12
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【简答题】如图9—19所示的导线通电流I，置于一个与磁感应强度为B的均匀磁场垂直的平面上，方向如图。求此导线所受的磁场力的大小与方向。
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相关题目：
【单选题】A person with myasthenia gravis notes increased muscle strength when he is treated with an acetylcholinesterase (AChE) inhibitor. The basis for his improvement is increased
A.
Amount of acetylcholine (ACh) released from motor nerves
B.
Levels of ACh at the muscle end plates
C.
Number of ACh receptors on the muscle end plates
D.
degradation of ACh at cleft of neuromuscular junction
查看完整题目与答案
【单选题】A 42-year-old man with myasthenia gravis notes increased muscle strength when he is treated with an acetylcholinesterase (ACHE) inhibitor. The basis for his improvement is increased
A.
amount of acetylcholine (Ach) released from motor nerves
B.
levels of Ach at the muscle end plates
C.
number of Ach receptors on the muscle end plates
D.
amount of norepinephrine released from motor nerves
E.
synthesis of norepinephrine in motor nerves
查看完整题目与答案
【多选题】菜肴烹调工艺的关键控制点有( )
A.
原料的预处理
B.
烹调温度
C.
烹调时间
D.
保存条件
E.
后处理
查看完整题目与答案
【判断题】Hypertropy refers to the increased size of a muscle.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Contractions called _____ occur whenever the forces applied to a muscle are increased, but the muscle does not appear to be moving.
A.
isotonic
B.
isometric
C.
tetanic
D.
summation contractions
查看完整题目与答案
【单选题】The amount of force produced by a skeletal muscle can be increased by
A.
Increasing extracellular Mg 2+
B.
Decreasing extracellular Ca 2+
C.
Increasing the activity of acetylcholine esterase
D.
Decreasing the interval between contractions
E.
Increasing the preload beyond 2.2 µm
查看完整题目与答案
【简答题】题9一19图所示两个相同的圆柱体，质量m=6．35kg，半径r=127mm，绳子连接如图所示。当t=0时将系统由静止释放。 试求： (1)在t=3s时圆柱体B的中心速度； (2)两个圆柱间绳子的拉力。
查看完整题目与答案
【单选题】如图9-30所示的MAN-B&W-S-MC/MCE主机操作系统中,管19的信号表示____。
A.
主机启动信号
B.
主机盘车机脱开信号
C.
主机换向完成信号
D.
主机停油控制信号
查看完整题目与答案
【单选题】如图19所示,编号为甲的房间应铺设几块预制板( )。
A.
3
B.
6
C.
9
D.
12
查看完整题目与答案
【简答题】如图9—19所示的导线通电流I，置于一个与磁感应强度为B的均匀磁场垂直的平面上，方向如图。求此导线所受的磁场力的大小与方向。
查看完整题目与答案
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