题目内容
(请给出正确答案)
[主观题]
一带电粒子平行磁感线射入匀强磁场,则它作________________运动.
答案
B
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第4题
A.直线; straight lines;
B.变速率圆周; speed change rate of the circumference;
C.匀速率圆周; uniform speed of the circumference;
D.螺线; spiral;
第5题
A.直线; straight lines;
B.变速率圆周; speed change rate of the circumference;
C.匀速率圆周; uniform speed of the circumference;
D.螺线; spiral;
第6题
A.直线; straight lines;
B.变速率圆周; speed change rate of the circumference;
C.匀速率圆周; uniform speed of the circumference;
D.螺线; spiral;
第7题
A.直线; straight lines;
B.变速率圆周; speed change rate of the circumference;
C.匀速率圆周; uniform speed of the circumference;
D.螺线; spiral;
第8题
A.直线; straight lines;
B.变速率圆周; speed change rate of the circumference;
C.匀速率圆周; uniform speed of the circumference;
D.(D)螺线; spiral;
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