从1990年至2005年之间,2月是29天的年份共计[ ] A.3个 B.4个

题型:选择题

问题:

从1990年至2005年之间,2月是29天的年份共计[ ]

A.3个    

B.4个    

C.5个

考点:年,月,日
题型:选择题

2013年5月3日凤凰网历史登载文指出:“1911年10月10日,武昌城里一场规模不大的军队哗变引起天翻地覆的巨变,不仅一个拥有两百多年历史的王朝走进了历史,而且顺带将延续两千多年的帝制一并终结。”对这段材料理解最准确的是,武昌起义

A.显示了近代中国历史巨变的必然性

B.是清朝统治结束和帝制终结的标志

C.具有偶然性的特点

D.不是以终结帝制为目标

题型:选择题

管道接口用的弹性密封橡胶圈应采用氯丁橡胶或其他具有耐酸、碱、污水腐蚀性能的合成胶,下列选项中对其性能的要求不正确的是( )。

A.邵氏硬度:50±5

B.伸长率:≥500%

C.永久变形:<25%

D.老化系数:≥0.8(70℃,144

题型:选择题

Running like the wind, roaring (咆哮) like thunder, tigers have long been feared and respected as a king of the animal world. But last week a report said that there are no more than 30 wild tigers left in south China.

This was the conclusion of a team of scientists from China's State Forestry Administration and the World Nature Fund.

The South China tiger, also known as the Chinese tiger, is native to southern China. In the 1950's, there were over 4000 tigers found in mountain forests in the country. But due to the destruction of their natural habitat and uncontrolled hunting, it has been pushed on to the list of the world's top ten most endangered species.

Sixty­six of the big cats can be found in the cages of a dozen zoos around China. But they are nothing like their wild cousins. They have lost their natural skills such as hunting and killing. If they were set free they could not look after themselves.

“Breeding has damaged the quality of the species”, said Pei Enle, deputy director of the Shanghai Zoo.

To reintroduce the species into the wild, the country started a programme to send five to ten young tigers to South Africa. Four of them have already arrived. Progress has been made as two elder tigers have recovered some of their instincts(本能) and can hunt wild animals by themselves at the African base.

“South Africans are very experienced in reintroducing big animals to the wild. The country has very good natural conditions for the tigers to learn in”, said Lu Jun, office director of the National Wildlife Research and Development Center.“We tried in Fujian Province, but it was not successful as there was not a complete eco­chain(生物链) and there was a lack of space.”

The tigers should return to China in 2007 when the reservations in Fujian are ready.

小题1:What is the main reason for the South China tiger becoming one of the world's top ten most endangered species?

A.Because it has lost its natural instincts.

B.Because there is not a complete eco­chain.

C.Because there is no space for it.

D.Because uncontrolled hunting has destroyed its natural living conditions.小题2:How is the programme of sending several tigers to South Africa getting on?

A.Its effect still remains to be seen.

B.Two tigers can already compete with their wild cousins.

C.Some of the tigers are already on the road to recovering their natural skills.

D.The tigers should be able to recover their instincts completely by 2007.小题3:By saying “but they are nothing like their wild cousins”,the writer means that________.

A.they are no longer feared by other wild animals

B.they don't know how to hunt or kill

C.a complete change has resulted in the species because of breeding

D.to reintroduce them into the wild has become an urgent task小题4:What is the purpose of sending young tigers to South Africa?

A.To help the tigers recover their ability to live in the wild.

B.To provide them with a better environment.

C.To get the tigers to go on a tour.

D.To find a complete eco­chain for them.小题5:Which one is NOT the reason for South Africa being chosen as the training place?

A.Because the tigers can hunt wild animals by themselves at the African base.

B.Because South Africans are skilled at dealing with the tigers.

C.Because there is a complete eco­chain and enough space there.

D.Because the country has good natural conditions for the tigers to learn in.

题型:选择题

工作大纲既是保证水资源论证报告书质量的手段,又是确定()的重要依据。

题型:选择题

患者,男,42岁。呼吸气促,喉中哮鸣有声,胸闷如窒,口不渴,形寒肢冷,面色晦暗,舌苔白滑,脉弦紧。治疗应首选:( )

A.二陈汤

B.麻黄汤

C.定喘汤

D.射干麻黄汤

E.平喘固本汤

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