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【单选题】
Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field?A.
Both beta and gamma are deflected in the same direction, while alpha shows no response.
B.
Both alpha and gamma are deflected in the same direction, while beta shows no response.
C.
Both alpha and beta are deflected in the same direction, while gamma shows no response.
D.
Alpha and beta are deflected in opposite directions, while gamma shows no response.
E.
Only alpha is deflected, while beta and gamma show no response.
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【多选题】阿尔卑斯山的意大利人为了培植该山北坡的松树,砍光了南坡上的森林,结果无意中摧毁了当地的畜牧业的基础,并使山泉枯竭、水土流失。从哲学上分析,主要是( )
A.
忽视了因果联系的复杂性
B.
割裂了自由与必然的辩证过程
C.
忽视了事物在发展过程中会出现种种可能性
D.
在变可能为现实的过程中,未能正确发挥主观能动性
【单选题】起动机电磁开关的作用是
A.
将蓄电池电能转换成电磁力矩
B.
在发动机起动时， 将电动机的电磁力矩传递给发动机飞轮
C.
控制起动机驱动齿轮与发动机飞轮的啮合与分离以及电动机电路的通断
【多选题】起动机电磁开关的作用是
A.
接通蓄电池和起动电动机之间的电路
B.
防止变速器不在空挡位置时起动车辆
C.
拨动起动机小齿轮啮入飞轮齿圈
D.
将蓄电池电能转变成机械能传给发动机飞轮
【多选题】起动机电磁开关的作用是
A.
接通蓄电池和起动电动机之间的电路
B.
拨动起动机小齿轮啮入飞轮齿圈
C.
防止变速器不在空挡位置时起动车辆
D.
将蓄电池电能转变成机械能传给发动机飞轮
【简答题】_______类的对象能够接受用户从键盘输入的信息。
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