如图所示,在x轴上方存在着垂直于纸面向里、磁感应强度为B的匀强磁场,一个不计重力

题型:选择题

问题:

如图所示,在x轴上方存在着垂直于纸面向里、磁感应强度为B的匀强磁场,一个不计重力的带电粒子从坐标原点O处以速度v进入磁场,粒子进人磁场时的速度方向垂直于磁场且与x轴正方向成120°角,若粒子穿过y轴正半轴后在磁场中到x轴的最大距离为a,则该粒子的比荷和所带电荷的正负是(  )

A.,正电荷

B.,正电荷

C.,负电荷

D.,负电荷

考点:带电粒子在匀强磁场中的运动
题型:选择题

右图是体重自动测试仪的工作原理,下列有关它的说法中正确的是

A.体重越大,体重示数计的示数越小

B.体重示数计是用电流表改装成的

C.体重测试仪电路由于缺少开关,始终处于通路

D.体重测试仪所测体重越大,电路消耗电能越少

题型:选择题

某县的甲公司未经漫画家乙许可,将其创作的一幅漫画作品作为新产品的商标使用,并于2003年3月3日被核准注册。乙认为其著作权受到侵害,与甲发生纠纷。乙应当采取( )的方式保护自己的合法权益。

A.向甲公司所在地基层法院提起侵犯著作权之诉

B.向有管辖权的法院提起撤销甲公司的注册商标之诉

C.请求商标评审委员会裁定撤销甲公司的注册商标

D.请求商标局裁定撤销甲公司的注册商标

题型:选择题

《中华人民共和国传染病防治法》规定,甲类、乙类传染病暴发、流行时,宣布疫区,要经()

A.当地政府决定

B.省级政府决定

C.县级以上地方政府报经上一级地方政府决定

D.乡级政府决定

E.报国务院决定

题型:选择题

V. 阅读理解(共40分)

第一节,阅读下列材料,从A、B、C、D四个选项中选出最佳答案,并把答题卡上对应题目的答案标号涂黑。(共20小题, 每小题2分, 共40分)

A

Mr.and Mrs.White had two sons and three daughters.One Sunday,Mrs. White said to her husband,“The children don’t have any lessons today,and you’re free too.There’s a new funfair(游乐场)in the park.Let’s all go there to play.

Her husband said,“1 want to finish some work today. “oh, forget it.Go there and make our children happy.That’s the most important work” Mrs. White said.

So Mr. and Mrs. White took their children to the funfair.Mr. White was forty-five years old.

but he enjoyed the funfair more than his children. He hurried from one thing to another,and ate lost of sweets. One of the children said to her mother,“Dad is just like a small child,isn’t he, Mom?” Mrs. White didn’t want to follow her husband around any more at that time and answered, He is even worse than a small child,Mary,because he might spend more money than a small child.

46. There were ________ children in the White family•

A. two    B. three    C. four     D. five

47.One Sunday,Mr.and Mrs. White wanted to go to _______ with their children.

A.school   B. work    C. a funfair   D. a shop

48.Mr.White liked the place so much that he_______.

A.bought lots of sweets         B. followed his wife all the time

C.hurried from one thing to another     D. asked a lot of questions

49.From the story we know Mrs.White________ when Mary asked her the question.

A.was still excited to play      B. was a little angry with  Mr. White

C.looked for Mr.White everywhere    C. are a lot of sweets

50.Of all he family members,_________ enjoyed playing there most that Sunday.

A.Mr.White    B.Mrs.White   C. Mary    D. the boys

题型:选择题

真虚假实证的治则是( )

A.寒因寒用
B.热因热用
C.通因通用
D.塞因塞用
E.补泻兼施

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