既能祛风湿，又能补肝肾，强筋骨，还能利水消肿的药物是( )A．薏苡仁 B．大腹皮

如图所示，画出水平桌面对书的支持力F=15 N的图示，说明施力物体和受力物体；并画出书所受重力和书对桌面的压力的图示．

某实验小组为了测试玩具小车的加速性能，设置了如图所示的轨道．轨道由半径为R=0.2m的光滑的圆弧轨道和动摩擦因数为μ=0.4的粗糙部分组成．现将小车从轨道上的A点开始以恒定的功率启动，经5秒后由于技术故障动力消失．小车滑过圆弧轨道从C点飞出落到水平面上的D点．实验测得小车的质量m=0.4Kg，AB间距离L=8m，BD间距离为0.4m，重力加速度g=10m/s²．求：

（1）小车从C点飞出时的速度？

（2）小车滑过B点时对轨道B点的压力？

（3）小车电动机的输出功率P．

男性，感冒后咳嗽，刺激性干咳，胸闷2个月。静滴青霉素800万单位/日持续半个月，无好转，应用支气管舒张药物可缓解。查体：肺及心脏无异常体征。胸X线平片无异常。血清肺炎支原体抗体阴性。为确诊应选择下列哪项检查最合适（）

A.支气管激发试验

B.肺通气功能检查

C.肺弥散功能测定

D.小气道功能测定

E.残气功能测定

阅读理解。

    Free and secure accommodation, no bills and even the odd home-cooked meals. It sounds like the

perfect living arrangement for cash-strapped students.

    Two mothers believe they have devised a way for struggling students to save on accommodation

costs when they leave home to study at university.

   Kate Barnham and Amanda Flude have launched Student Swaps,an online accommodation forum

(论坛) for parents and students,in advance of the introduction in September of ~3,000 higher education

top-up fees.

      Their website says,"The principle behind Student Swaps is to enable students to literally swap(交换)

family homes. "The website will hold a database of students who would like to swap and link them with

suitable matches. So those from one town/city could swap with those from a different town/city.

         The site describes itself as offering a" cost-free accommodation alternative...at a time of growing

student debt". There is no charge for the service at the moment,but Ms Barnham and Ms Flude intend to

introduce a ~10 annual fee if it becomes established.

       However,the National Union of Students ( NUS) has warned that,while the scheme may sound

appealing to struggling freshers,it lacks any formal regulation.

          Veronica King,NUS vice-president of welfare,said, " The fact that this scheme has even been

suggested is evidence to the high levels of debt students now face on graduation. " Recent research has

shown that students are more likely to live at home in coming years,in a bid to cut down on the cost of

a degree.

     "This is worrying,as it may mean that students choose their university on the basis of where it is,rather

than because it offers the best course for them. It also means students will miss out on what is for

some-a key part of the student experience-living away from home. "

1. A" cash-strapped" student means one who _____.

A. lacks money                      

B. prefers to stay at home

C. is careful with money        

D. wants to change cash

2. What is Kate Bamham and Amanda Flude's purpose of launching Student Swaps?   

A. To provide cheaper accommodation for students.

B. To let students stay close to their universities.

C. To help students spend less on accommodation costs.

D. To let students exchange ideas freely online.

3. What can students do on Student Swaps?   

A. They can find students to exchange homes with.

B. They can make friends with students from a different city.

C. They can borrow money to pay for their higher education.

D. They can voice their opinions against the rising cost of a degree.

4. Now many students would prefer a university  

A. which can give them free accommodation

B. which is not far away from their homes

C. which offers the best courses

D. which can offer home-cooked meals

5. What would be the best title for the passage?  

A. High Cost Troubles University Students in UK.

B. Students Swaps is Welcomed by Students in UK.

C. Two Mothers' Good Intention to Help Students in UK.

D. Website Helps Students Live at Someone Else's Home.

款式设计的基本原则是（）.