ＳＯ２与Ｏ２混合气体对Ｈ２的相对密度为22．22，在密闭容器内反应达到平衡，平衡

A new campaign to ban smoking in taxis is part of a wider push to clean up the city’s image before the 2010 World Expo(2010年世界博览会). The Shanghai Dazhong Taxi, a taxi company, said drivers _小题1:_(find) smoking in their cabs could “possibly” be fined or even temporarily banned __小题2:_ working. Signs __小题3:(place) in all of the taxi company’s 9,100 strong fleet (车队) saying “No Smoking in Taxis. Welcome to Shanghai World Expo”．

“We hope the sanitation(卫生环境) of cabs in the city will be improved through our no-smoking campaign，__小题4:_ is a mutual benefit for __小题5:_ drivers and passengers. ”

Dazhong said it would __小题6:_(close) monitor the campaign’s progress.

Drivers caught smoking will undergo the company’s training and inspection program. “Cabs found to have cigarette smell will be called back”， Zhao said.

Many taxi drivers smoke __小题7:_(relax) from working long hours. The official admitted __小题8:_ would not be an easy task to achieve a total smoke ban in a short time.

“Promoting non-smoking taxis in the whole city is _小题9:__ long journey，” Zhao said. “_小题10:__ having a long way to go, we are confident of fulfilling our ‘smoke-free taxi’ program in the city through our diligence.”

小军同学是某市一中学的学生，学习成绩优异，深受老师喜爱，同学们也愿意同他交朋友。但是自八年级下学期开始，他偷偷到网吧上网、聊天、玩游戏。在网络的虚拟世界里流连忘返，学习成绩急剧下降，和老师、同学的交流日渐减少。老师和父母做了许多工作，但他仍迷恋网吧，不能自拔……

（1）原因分析：你认为小军同学发生这种变化的原因是：

①自身原因：_____________________________________________________________________________。

②社会原因：_____________________________________________________________________________。

（2）观点辨析：小军的妈妈因为小军上网也不知道流了多少泪，她说：“都是网络害了人！”你对小军妈妈的说法是怎么认识的，请说一说。

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（3）请你帮助：小军在老师、同学和家长的多次劝说下逐渐认识到迷恋网吧对自己的危害，很想摆脱网络游戏的阴影，只是控制不住自己，假如你是小军的好朋友，请你帮小军想一想改正的办法。

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（4）提出建议：为解决像小军一样的迷恋网吧这类问题，你认为社会有关部门应尽哪些责任？

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下列有关化学反应速率与化学反应限度的叙述中，错误的是

A．化学反应速率是表示化学反应快慢的物理量

B．一般情况下，升高温度能加快化学反应速率

C．可逆反应达到化学反应限度时，反应就静止不动了

D．可逆反应达到化学反应限度时，正反应速率等于逆反应速率

企业当月交纳前期应交未交的增值税时，应借记的科目是：

A．应交税金：应交增值税（转出未交增值税）

B．应交税金：应交增值税（转出多交增值税）

C．应交税金：应交增值税（已交税金）

D．应交税金:未交增值税

“双核驱动”战略立足于广西（）独特区位优势，进一步优化了广西开放发展的总体布局。

A、沿海

B、沿粤

C、沿边

D、沿江