行车中超越右侧停放的车辆时,为预防其突然起步或开启车门,应怎样做?A.预留出横向安全

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问题:

行车中超越右侧停放的车辆时,为预防其突然起步或开启车门,应怎样做?

A.预留出横向安全距离,减速行驶

B.保持正常速度行驶

C.长鸣喇叭

D.加速通过

考点:机动车驾驶人考试基础知识理论考试(科目一)客车
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各级行网上银行管理员、操作员如何修改银行证书密码?()

A、在RA/CIF系统中修改

B、利用证书管理工具软件修改

C、利用安全代理软件修改

D、利用IE证书导入功能修改

题型:单项选择题

Most people have a cellphone(手机). When you are walking on a busy street, you will see many people speaking on their phones. Many people say they can’t imagine how they live without a cellphone.

Cellphones play an important role in our daily life, such as keeping in touch with others, calling home or the police if there is any emergency. Although cellphones can help us a lot, we must think of others when we use them. Unfortunately, some people do not consider others when using their cellphones. For example, some cellphone users speak too loudly and discuss personal matters in public places. Some people make phone calls in the cinema. Some people talk for a long time on the phone while they are driving on the busy road. Someone’s cellphone will ring during an important meeting. Many people complain about these bad manners. In their opinion, cellphone users shouldn’t disturb others when they make a call.

Then how to use a cellphone politely in public? The following rules will help you. When you’re in a meeting, watching a movie or having a lesson, you’d better turn off your cellphone. When you get a call and you’re with friends, try to make the call as short as you can. If you are waiting for an important call, then make sure that you tell others about this at the beginning of a meeting. It’s rude to scream(尖叫声) or shout on the phone. Make sure you will be heard only by the caller but not by the others around you. Besides, if possible, find a quiet place where you can talk in private.

小题1:You can see many people using ________ in the street.

A. radio                           B. cellphones                         C. MP4

小题2:What’s the Chinese meaning for the underlined word “emergency”?

A. 紧急情况                  B. 娱乐活动                          C. 公益活动

小题3:People must consider ________ when they use cellphones in public.

A. themselves                    B. other persons                      C. their family

小题4:It is good manners for cellphone users to ________.

A. make phone calls in the cinema

B. talk about personal matters loudly in public

C. turn off the phone during an important meeting

小题5:The best title for this passage is ________.

A. Cellphone Manners       B. Cellphones Are Very Useful    C. Having a Meeting

题型:单项选择题

(12分)如图18所示,在xOy平面上第Ⅰ象限内有平行于y轴 的有界匀强电场,方向如图所示.y轴上一点P的坐标为(0,y0),有一电子以垂直于y轴的初速度v0从P点垂直射入电场中,当匀强电场的场强为E1时,电子从A点射出,A点坐标为(xA,0),当场强为E2时,电子从B点射出,B点坐标为(xB,0).已知电子的电荷量为e,质量为m,不计电子的重力,E1、E2未知.

(1)求匀强电场的场强E1、E2之比;                            

(2)若在第Ⅳ象限过Q点放一张垂直于xOy平面的感光胶片,Q点的坐标为(0,-y0),

求感光胶片上曝光点的横坐标xA′、xB′之比.

题型:单项选择题

晶体常数

题型:单项选择题

微机励磁系统在水电站中的应用,提高了电力系统运行的稳定性和可靠性()

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