用极限法测定差别阈限时，在每次渐增系列实验中，其阈限的下限值应取（ ）A．第一次非正

受剪切变形的杆件，各截面上的内力为（）

A．剪力

B．剪应力

C．弯矩

D．扭矩

肾挫伤非手术治疗至少需要绝对卧床（）

A.1周

B.2周

C.3周

D.4周

E.5周

为减小水电站机组的转速变化率β，应（）。

A.设调压室

B.设放空阀

C.设水阻器

D.减小Ts

阅读理解。

     Maricel Apatan, 22, stands in the kitchen of the Edsa Shangi-La Hotel in Manila, preparing to

decorate a cheesecake. It would seem to be a routine task for a cake chef,but Maricel is no ordinary

chef-she has no hands.

     Maricel has come a long way since the day in September 2000 when she and her uncle were

attacked near their farm. Fortunately, both of them survived, but the 11-year-old girl lost her hands.

In 2004,she entered a Manila training centre for people with disabilities. She learned how to write and

do housework and,more importantly, came to terms with her disability.

     After graduation from high school, she took a two-year Hotel and Restaurant Management course

and flourished even though she was the only disabled student in the course. After she moved back to

Manila to continue her studies, the media started reporting on this determined young woman. She

didn't shy away from the attention."I wanted others living with disabilities to believe it's possible to live

a normal life,"Maricel says.

     When managers at the Edsa Shangri-La Hotel saw Maricel on television, they hired her as part of

the hotel's Care for People project. She has also accomplished her goal of inspiring others. One of them

is Ronelyn Calumpiano, a 21-year-old with cerebral palsy (脑瘫).She saw Maricel on television and

was moved by her confidence. Ronelyn will soon start classes and is already planning a career in IT.

Mericel's three younger sisters have moved to Manila. She pays for the rent of their small apart-ment,

while their parents look after their family farm in Mindanao. "It is difficult to make ends meet but I don't

lose hope. I believe anything is possible if you dream, work hard and pray."

1. "Maricel is no ordinary chef" because               .

A. she is better than other chefs

B. she is physically disabled

C. she can do a routine task

D. she is good at decorating cakes

2. Which of the following is NOT true about Maricel?

A. She survived while her uncle did not.

B. She didn't shy away from public attention.

C. She has inspired some disabled people.

D. She managed to make a living by herself.

3. The underlined word "flourished" in Paragraph 3 is similar in meaning to               .

A. was rejected

B. was employed

C. recovered well

D. developed well

4. According  to the text, Ronelyn                .

A. works in an IT company

B. was inspired by Maricel

C. once lived in Mindanao

D. has already started classes

5. What does the author want to tell us in the text?

A. We should be determind and never lose hope.

B. We Shouldn't look down upon the disabled.

C. We Should help those who suffer disabilities.

D. We should feel sympathy for the unfortunate.

由广东倡议成立的“泛珠三角”经济合作区包括了珠江流域的省(区)及其周围地区。其中有水系与珠江相通的省(区)是( )。

A．粤、闽、赣、黔、滇、桂

B．赣、粤、湘、桂、滇、黔

C．桂、赣、粤、滇、黔、川

D．琼、闽、桂、滇、粤、黔