若胁痛，胁肋下有癥块，而正气未衰者，可用复元活血汤加下列哪组药物A．青皮、陈皮、香附

About 21,000 young people in 17 American states do not attend classes in school buildings.

Instead, they receive their elementary and high school education by working at home on computers. The center for Education Reform says the United States has 67 public “cyberschools(网络学校)” and that is about twice as many as two years ago.

The money for students to go to 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 computer 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 cyberschools 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 telephone or by sending emails through their computers when necessary.

Students at cyberschools usually do not know one another. But 56 such students 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 cyberschools?

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

如图是H7N9 病毒结构示意图．请回答问题：

（1）H7、N9都是病毒外壳的组成成分．从病毒结构组成看，H7、N9应该是病毒组成成分中的______．

（2）目前发生的禽流感，它的病原体是______．

（3）上图①～⑥是预防禽流感的措施，其中属于控制传染源的是______（填序号）．

（4）生产H7N9禽流感的疫苗，一般需要7～9个月的时间，若该疫苗生产成功进行预防接种，可对H7N9禽流感起到免疫作用，这属于______性免疫．

新药监测期内的国产药品应当（）

A.在首次药品批准证明文件有效期届满当年汇总报告一次，以后每5年汇总报告一次

B.除报告普通不良反应和特殊不良反应外，还应以"药品不良反应／事件定期汇总表"的形式进行年度汇总后，向所在地的省、自治区、直辖市药品不良反应监测中心报告

C.报告该药品的所有不良反应

D.报告新的和严重的不良反应

E.每5年汇总报告一次

抗日战争胜利后，国共两党斗争的焦点是

A．建什么国

B．战争与和平

C．独裁与民主

D．卖国与反卖国

阀体开裂一般是冰冻造成的。天冷时，阀门要有（）措施，否则停产后应将阀门及连接管路中的水排干净（如有阀底丝堵，可打开丝堵排水）。