下列关于金属的叙述中,正确的是( ) A.所有的金属都是固态的 B.金属具有导电

题型:选择题

问题:

下列关于金属的叙述中,正确的是(  )

A.所有的金属都是固态的

B.金属具有导电性、导热性和延展性

C.历史上人类使用最早的金属是铁

D.金属元素在自然界中都是以化合态存在的

考点:新型材料(新型陶瓷、单晶硅等)生活中的其他材料及应用(纳米材料、功能高分子材料等)
题型:选择题

患者,男,27岁,自去年冬季以来每日发生空腹痛,进食后疼痛缓解。平时伴有恶心、打嗝、反酸,查体:剑突右侧有局限压痛,无反跳痛。

作何种检查可以确诊()

A.化验胃酸

B.胃镜

C.CT

D.B超

E.化验血常规

题型:选择题

Giemsa改良染色使嗜铬细胞呈()

A.粉红色

B.紫红色

C.蓝色

D.绿色

E.黄色

题型:选择题

阅读理解。

      Although there are no state controlled survival courses in Britain or the United States, there are various

independent organizations offering similar activities.

      Students can participate (take part) in outdoor training courses through university clubs and societies.

Anyone can register (登记) with such groups, which then organize courses, training and trips for all

members. 

      One of the most popular outdoor training programmes in both the US and Britain, is Outward Bound

(户外训练). It was founded in 1941 in Wales and attracts hundreds of thousands of adventurous types

every year.

      The courses are to broaden minds through experiences that build confidence, self-esteem (自尊) and

character. As well as specialist courses such as canoeing, leadership skills and sailing, participants can take

part in week long adventure training camps which include a host of sports and survival training education

skills. 

       Michael Williams, an American student, took part in an Outward Bound course last year. He said:"We

learned lots of first aid skills, lots of natural history, lots of environmental facts, and participated in a wildlife

preservation (protecting) programme. Beyond that, my favorite skills learned were sailing and rock climbing."

       Courses can last up to 40 days and are open to anyone over the age of 14. Students must be in general

good health, but do not need to be experienced in outdoor-sports. There is no selection process; everyone is

welcome, although new participants are advised to pick a course matching their physical power.

       Most of the British courses take place in the Beacons in Wales. Another similar organization is the UK

Survival School, which includes courses on learning to live with the environment, sailing and winter survival.

On a basic survival weekend students will learn how to get water and food, how to make fire and cook with

it, to find and build a shelter, control survival life support, how to cross rivers, send off an SOS signal, and

to use compasses by day and night.

      According to the leaders, such adventures are "an awakening, an exploration into unknown." Outward

Bound believes that participants will "use mind and body traveling some of the earth's roughest wildness

areas."

1. The advantage of the training courses is that _____. [ ]

A. participants can make friends with others

B. participants can visit some places of interest

C. participants can experience different adventures

D. participants can learn how wonderful nature is

2. In the Outward Bound course last year, the most exciting experience Michael Williams had was _____. [ ]

A. learning first aid skills

B. collecting facts of environment

C. preserving wildlife

D. rock climbing and sailing

3. What's the writer's purpose to write this passage? [ ]

A. To introduce the training course to readers.

B. To persuade readers to take part in the training courses.

C. To tell readers the danger of this training course.

D. To introduce the wonders of the world to readers.

题型:选择题

①人人都有心中最值得______和喜欢的地方,或许是城市小巷,或许是山林大川,总会有个地方值得你去向往。 ②他不顾刺骨的寒冷跳进河中,救上三名落水儿童,全体师生都在______他英勇救人的事迹。 填入画横线部分最恰当的一项是( )。

A.留念 传诵

B.留念 传颂

C.留念 传诵

D.留恋 传颂

题型:选择题

法律所反映的道德是抽象的。

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