问题 选择题
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

答案

答案:C

完形填空

阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意题后词数要求)。

[1] July 13 - Chinese mainland actress Chen Hao has been chosen as the most beautiful woman in China in an online poll (调查)featuring more than one million voters, reports CRI.

[2]The actress shot to fame for her role in TV series "Pink Ladies", which was adapted from Taiwan cartoonist Zhu Deyong's comic book . Chen Hao ___________ one of the leading roles in "Pink Ladies" as a sexy and adorable lady that manipulates the guys. The drama later turned out to be a super hit all across Asia's Chinese community.

[3]Other identities in the top 10 included Yang Lan, a TV hostess and entrepreneur, Annie Yi, a Taiwan singer and actress, and Yu Dan, a professor and media scholar, says CRI.

[4]The poll began in April and initially featured 100 candidates(候选人) from all circles of life.

[5]Voters then reduced the candidate list to 50, based on criteria (标准)including theirreputations, achievements, personalities and contributions to the society, the organizer said.

[6]Over one million people attended the online poll conducted on Sina.com, the web site reported. The result was determined according to the public votes and the opinions of the jury(陪审团) team.

小题1:What is the main idea of the text ? ( no more than 10 words )

                                                                                                                     

小题2:Do you think the actress Chen Hao is the most beautiful woman in China? Why? (no more than 15 words )

                                                                        

小题3:Fill in the blank in paragraph 2 with proper words. (no more than 2 words )

                                                                            

小题4:What criteria do the voters take into consideration? ( no more than 10 words )

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小题5:What does the underlined word “ their “ ( line 1, paragraph 5 ) refer to ? .( no more than 2 words )

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问答题