现在在涤纶短纤维的生产中拉伸段数一般采用（）。A、一段拉伸 B、两段拉伸 C、三段拉

《建设工程施工合同(示范文本)》规定，承包人不能按时开工，应在不迟于协议书约定的开工日期前( )天，以书面形式向工程师提出延期形式和要求。

A．1

B．2

C．7

D．1 4

水稻也能在北方生长，这是因为我国气候具有____的特点

A．季风区面积广    

B．雨热同期    

C．地形复杂    

D．气候复杂多样

阅读理解。

     LANGUAGES Canada, a new Canadian national organization of public and private language training

programs, was started recently to ensure that language training in Canada is of high quality, Canada News

Wire has reported.

     Canada has developed its language-training programs for over forty years without a comparatively uniform

(adj. 一致的; 相同的) quality standard before Languages Canada adopted (采用) a complete system of rigorous

standards that apply equally to all public and private schools in Canada to qualify (取得资格；具备合格条件),

a school is evaluated in a number of categories including curriculum, teacher qualifications, student services,

student admissions, marketing,promotion, facilities and administration. The quality standards guarantee that

international students who come to Canada to learn English or French can expect to receive a uniform level of

excellent instruction.

     So far, a total of 144 language-training programs,public and private, English and French, have met the

standards. They will have to re-qualify in three years. About two dozen other schools failed to meet all standards

and may be re-evaluated in the future.

     Canada's language training sector accounts for (数量占…) about 15 percent of the market share of global

language training business Canada ranks third among destinations for English language training after UK and US.

Calum Mackechnie, President of Languages Canada and President of York University's English Language

Institute, says if Canada wants to fully take advantage (利用) of the economic potential (潜力) of its language-

training sector, it needs to make sure the world knows what the country has to offer.

1. What do we know about Languages Canada? [ ]

A. It is a language training school.

B. It has a history of over 40 years.

C. It has many branches all over the world.

D. It is a new Canadian national organization.

2. _____ is not taken into consideration when evaluating a school. [ ]

A. Curriculum

B. Teacher qualifications

C. School size

D. Administration

3. The underlined word "rigorous" in Paragraph 2 probably means "_____". [ ]

A. strict

B. similar

C. different

D. The same

4. Which of the following statements is WRONG?[ ]

A. So far, 144 language-teaching programs have met the standards.

B. UK ranks second among destinations for English language training.

C. About 24 other schools didn't meet all standards.

D. Languages Canada was launched to ensure high-quality language training in Canada.

5. What's the main idea of this passage? [ ]

A. Canada sets English training standards across the country.

B. Canada is a big language-training country.

C. Canada hopes to make more money from language training.

D. Canada has a long history in developing its language-training capacity.

最易引起肝性脑病的疾病是（）。

A.药物性肝炎

B.肝炎后肝硬化

C.酒精性肝硬化

D.血吸虫病引起的肝硬化

E.胆汁淤积性肝硬化

焓是过程量，这说法是否有错，错在何处，为什么？