学校买12个篮球，11个排球，每个篮球35元，每个排球32元，买这些球一共用了多

装运经国家批准进口的废物原料的集装箱，应当由( )实施检验检疫。

A．目的地检验检疫机构

B．进境口岸检验检疫机构

C．指运地检验检疫机构

D．合同指定的检验检疫机构

About 21,000 young people in 17 American States don’t attend classes in school buildings. Instead, they receive their elementary (初等) and high school education by working at home on computers . The Center for Education Reform says the United States has 67 public “cyberschools,” and that is about twice as many as two years ago.

The money for students to attend a cyberschool comes from the governments of the states where they live. Some educators say cyberschools receive money that should support traditional public schools . They also say it is difficult to know if students are learning well.

Other educators praise this new form of education for letting students work at their own speed. These people say cyberschools help students who were unhappy or unsuccessful in traditional schools . They say learning at home by computers ends long bus rides for children who live far from school.

Whatever the judgment of cyberschools , they are getting more and more popular.

For example , a new cyberschool called Commonwealth Connections Academy will take in students this fall. It will serve children in the state of Pennsylvania from ages five through thirteen.

Children get free equipment for their online education. This includes a computer, a printer, books and technical services. Parents and students talk with teachers by telephones or by sending emails through their computers when necessary.

Students at cyberschools usually do not know one another. But 56 such students who finished studies at Western Pennsylvania Cyber Charter school recently met for the first time. They were guests of honor at their graduation.

小题1:What do we know from the text about students of a cyberschool?

A．They have to take long bus rides to school.

B．They study at home rather than in classrooms.

C．They receive money from traditional public schools.

D．They do well in traditional school programs.小题2:What is a problem with cyberschools?

A．Their equipment costs a lot of money.

B．They get little support from the state government

C．It is hard to know students’ progress in learning.

D．The students find it hard to make friends.小题3: Cyberschools are getting popular because    

A．they are less expensive for students

B．their students can work at their own speed

C．their graduates are more successful in society

D．they serve students in a wider age range小题4:We can infer that the author of the text is _________.

A．unprejudiced(无偏见的) in his description of cryberschools .

B．excited about the future of cryberschools

C．doubtful about the quality of cryberschools

D．disappointed at the development of cryberschools.

防水和保温工程应由专业资质单位施工，作业人员应具备（）。

（）等特种作业人员，必须按照国家有关规定经过专门的安全技术培训，并取得特种作业操作资格证书后，方可上岗作业。

A.垂直运输机械作业人员

B.质量检查人员

C.爆破作业人员

D.起重信号工

E.登高架设作业人员