《楚辞》是继《诗经》之后，屈原采集整理楚国民歌的结构形式和方言土韵所作的诗集。其中的

—This is         picture I told you about .

—I see . Isn’t it          beautiful one ?

A．a; a

B．the ;a

C．the; the

D．a; the

如图所示，伽利略理想实验将可靠的事实和理论思维结合起来，能更深刻地反映自然规律。伽利略的斜面实验程序如下：

①减小第二个斜面的倾角，小球在这斜面上仍然要达到原来的高度

②两个对接的斜面，让静止的小球沿一个斜面滚下，小球将滚上另一斜面

③如果没有摩擦，小球将上升到释放时的高度

④继续减小第二个斜面的倾角，最后使它成水平面，小球沿水平面做持续匀速运动

请按程序的先后次序排列，并指出它究竟属于可靠的事实，还是通过思维过程的推论，下列选项正确的是

A．事实②→推论③→事实①→推论④

B．事实②→推论③→推论①→推论④

C．事实②→推论①→推论③→推论④

D．事实②→推论①→事实③→推论④

San Francisco，unofficially regarded as one of the homeless capitals of the US，counts nearly 6,500 homeless people, with 4,300 living on the street．

Among the many problems that the homeless face is little or no access to showers．San Francisco only has about 16 to 20 shower stations to accommodate them．But Doniece Sandoval has made it her task to change that．

“Homelessness is something you can’t really miss，”the 51-year-old woman said．She started Lava Mae，a sort of showers on wheels, a new project that aims to turn old city buses into shower stations for the homeless．

“One day I passed a woman in the street and she was very dirty and basically crying，and I heard her say that she would never be clean．But I was wondering what her opportunities were to actually get clean,” Sandoval said．

Sandoval was inspired to start Lava Mae. The project has already been welcomed with open arms in the city．The Transportation Agency has donated one bus for the cause and is willing to donate three more if the project succeeds．Sandoval hopes the first bus will be able to hit the road in May this year．The Public Commission has also agreed to let the buses plug into fire hydrants(消防龙头)around the city if Lava Mae  pays for the water．

One of Lava Mae’s biggest supporters is Bevan Dufty, the director of Housing Opportunity, Partnerships & Engagement under the mayor of San Francisco．“For people who are unhoused，access to showers is very difficult．Shower buses are something that could potentially be deployed (部署)in response to an emergency，so it is relevant to all San Franciscans," Dufty said．“Doniece has done an incredible job as a citizen who cares about helping the poor．We are very excited to see Lava Mae become real soon．”  

Each bus will have two shower stations and Sandoval expects that by 2015，they’ll be able to provide 2000 showers a week．

小题1:What problem does San Francisco face according to the text?

A．The city has the most homeless people in the USA．

B．There are no shower stations for the homeless in the city．

C．It’s hard for homeless people in the city to take showers．

D．Few citizens in the city care about the homeless．

小题2:What does the underlined word ''them” in Paragraph 2 refer to?

A．City problems．

B．Shower stations．

C．Old buses．

D．The homeless．小题3:Which of the following best describes Doniece Sandoval?

A．Brave and independent．

B．Caring and responsible．

C．Honest and determined．

D．Friendly and humorous．小题4:What can we learn from Dufty’s words?

A．All San Franciscans are excited to use Lava Mae．

B．Emergencies in San Francisco will be prevented by Lava Mae．

C．Dufty thinks highly of Doniece's way of helping the poor．

D．The mayor of San Francisco will support Doniece financially．小题5:What can be a suitable title for the text?

A．A newly invented way of shower

B．Showers on Wheels for the Homeless

C．The health problem of the homeless

D．Lave Mae-a new name for old city buses

维生素B₂的良好的食物来源（）

A.动物肝脏

B.粮谷类

C.蔬菜类

D.水果

E.豆类及豆制品

下列哪项不是CT图像的优点（）

A.真正的断面图像

B.密度分辨力高于普通X线片

C.可做定量分析

D.空间分辨力高于普通X线片

E.采用螺旋扫描方式，可获得高质量的三维图像和多平面断面图像