下列各项，是对开窍剂使用注意事项的描述，其中错误的是（） A.中病即止 B.孕妇慎用

DCS系统检修时上电步骤是什么？

下列关于计日工，说法错误的是( )。

A．由监理人通知承包人以计日工方式实施变更的零星工作，其价款按计日工计价子目及其单价进行计算

B．采用计日工计价的任何一项变更工作，应从暂估价中支付

C．承包人应在以计日工方式实施变更的过程中，每天提交有关报表和凭证报送监理人审批

D．计日工由承包人汇总后，在每次进度款申请支付时列入申请单，由监理人复核并经发包人同意后列入进度付款

按《港口工程地基规范》(JTJ 250—98)要求，验算港口建筑物饱和软黏土地基承载力时，下列抗剪强度指标的用法中正确的是( )。

A．持久状况和短暂状况均采用不排水抗剪强度指标

B．持久状况和短暂状况均采用固结快剪指标

C．持久状况采用不排水抗剪强度指标，短暂状况采用固结快剪指标

D．持久状况采用固结快剪指标，短暂状况采用不排水抗剪强度指标

右图每一方框中的字母代表一种反应物或生成物．产物J是含金属元素A的白色胶状沉淀，I为NaCl溶液，D是淡黄色固体单质．试填写下列空白：

（1）框图中所列物质中属于非电解质的物质的化学式是______；

（2）用电子式表示出H的形成过程______；

（3）将E的水溶液蒸干并灼烧得到的固体物质的化学式为______；

（4）F的水溶液中各离子浓度由大到小的顺序为______；

（5）F的水溶液显碱性的原因：（用离子方程式表示）______；

（6）E与F在L中反应的离子方程式为______；

（7）H和G之间反应的化学方程式为______．

San Francisco has long been a favorite place for travelers who are ready to learn languages．The mild （温和的） year-round climate, shops and restaurants, bars and night-life, and some of the most beautiful scene in the US attract many visitors to this relaxing and welcoming city．Students are sure to find the San Francisco Bay Area an interesting, safe and friendly place in which they can live and study．This is the most important．

English School in San Francisco is located in the heart of the city．It is one of the best San Francisco English language schools．You can see views of the city from your classroom! Many buses stop less than a five-minute walk from the school, which is also just a two-minute walk from the famous Union Square, San Francisco Shopping Centre, the Financial District, Yerba Buena gardens and the Museum of Modern Art．The school is minutes away from the cable cars （缆车） to Chinatown and Fisherman’s Wharf and a boat ride on the bay．

San Francisco is a great place to study English and learn about American culture, offering excellent opportunities in sports, entertainment and arts．The city borders （接近） excellent beaches, and you can sail or surf all year round．

San Francisco has more restaurants than any other city in the US, and is the home of many theaters, music and dance companies, as well as museums．Just walking through the many areas of San Francisco, you are certain to find something wonderful．

小题1:That San Francisco attracts students most might be ______．

A．the mild year-round climate

B．its beautiful scenery

C．shops and restaurants, bars and night-life

D．a good place to live and study in小题2:It is only a two-minute walk from English School to ______．

A．a bus stop

B．the beaches

C．the Financial District

D．Fisherman’s Wharf小题3:Which of the following is TRUE according to the passage?

A．English School has the most beautiful scenery in the US．

B．Most of the restaurants in the US are located in San Francisco．

C．In San Francisco, one can experience one part of American culture．

D．English School in San Francisco is one of the best in the US．小题4:The author mainly wants to tell us ______．

A．about English schools in the US

B．the places around English School

C．about the beautiful scenery in San Francisco

D．San Francisco is a good place to learn language