扑球

题型:名词解释

问题:

扑球

考点:体育科学羽毛球考试羽毛球考试题库
题型:名词解释

(10分)Q、W、X、Y、Z是5种短周期元素,原子序数逐渐增大,Q与W组成的化合物是天然气的主要成分,W与Y、X与Y组成的化合物是机动车排出的大气污染物,Y和Z能形成原子个数比为1︰1和l︰2的两种离子化合物。

(1)W在元素周期表中的位置是      周期      族。

(2)工业合成XQ3是放热反应。下列措施中,既能加快反应速率,又能提高原料利用率是         。(填写序号)

A.升高温度

B.加入催化剂

C.将XQ3及时分离出去

D.增大反应体系的压强(3)2.24 L(标准状况)XQ3被200 mL l mol/L QXY3溶液吸收后,所得溶液中离子浓度从大到小的顺序是                        。(用离子符号表示)

(4)WQ4Y与Y2的反应可将化学能转化为电能,其工作原理如右图所示,a极的电极反应是                        

(5)已知:W(s)+Y2(g)=WY2(g);H=-393.5kJ/mol

WY(g)+Y2(g)=WY2(g);H=-238.0kJ/mol。则 24g W与一定量的Y2反应,放出热量362.5 kJ,所得产物成分及物质的量之比为              

(6)X和Z组成的一种离子化合物,能与水反应生成两种碱,该反应的化学方程式为              

题型:名词解释

患者男性,28岁,因“男性雄激素性脱发10年余”来诊。查体:前发际线中心点到眉间距离约8cm,两侧额角后退约2cm,顶部毛发稀疏且细软,部分头皮外露,头发油腻。其父亲及爷爷均有明显脱发。

毛发移植的并发症有()

A.出血、淤血、血肿

B.发际线不自然

C.移植后的方向和角度与原有毛发不一致

D.瘢痕

E.毛囊炎,表皮囊肿

F.术后局部头皮麻木,感觉迟钝

G.毛发稀疏和卷曲,继发性脱发

题型:名词解释

对消化性溃疡有确诊价值的是()。(2006年真题)

A.X线钡餐检查

B.胃镜检查

C.胃液分析

D.粪便隐血

E.幽门螺杆菌检查

题型:名词解释

It’s not uncommon in America for a person to belong to some kind of volunteer group. Donating one’s time and services is very much a part of the American way of life. Most charitable activities are organized by churches and groups around the nation and even encouraged by the government. The helping hand is extended to the poor, the homeless and the disabled. Some people work to teach youngsters how to read. Others open up soup kitchens to feed the homeless. Volunteers also take care of the disabled by making reading tapes for the blind and working in orphanages(孤儿院)to help children without parents.

High school students are often encouraged to become volunteers and many school club activities center around volunteer services. Students may work with disabled children during a summer program, or participate in a club activity which helps to bring meal to senior citizens who are shut-ins. With their sense of idealism(理想主义)students are often eager to donate their spare time. They see such activities as a way of becoming involved in the community and the adult-world. Social action for them becomes as   important as their academic studies.

In a like manner, throughout the year,fund raising drives are also conducted by schools and community groups to raise money for a worthy cause. They may respond to a recent earthquake in a foreign country, a flood somewhere within their own, or another natural disaster which has left people destitute and homeless. They may organize drives to collect food, clothing and medicines to serve an immediate need. Today even the Halloween custom of ‘trick or treat’has become an occasion to collect money for a charitable cause.

The motive to help those less fortunate comes from the poor origins of the American nation. Those immigrants who were poor and downtrodden(受压迫的)became dependent on the kindness of their neighbors to make a new life for themselves.

American volunteers work throughout the world in less developed countries. They volunteer by serving as a champion of goodwill both at home and abroad, which no doubt enriches both his life and those whom he serves.

小题1: Which of the following charitable activities is NOT mentioned in the passage?

A.Some people open up soup kitchens to feed homeless people.

B.Some students bring meals to old people who can’t go out easily.

C.Some people collect money to help a foreign country with a recent earthquake.

D.Some students donate books to children in mountainous areas.小题2: Why are American high school students eager to do voluntary work?

A.Because they want to participate in some social activities.

B.Because they want to go to better universities.

C.Because they can get higher scores at school.

D.Because they can realize their dream sooner.小题3:The underlined word “destitute” in Paragraph 4 probably means           .

A.lifeless

B. penniless

C.useless

D.valueless小题4: American charitable activities started because ___________.

A.Americans are always ready to share with others

B.Americans are mostly kind

C.poor immigrants needed help badly

D.poor Americans couldn’t live on without help小题5: What’s the best title of the passage?

A.The Call from the Poor

B.Voluntary Work in the US

C.Ways to help the Poor

D.American Volunteers Around the World

题型:名词解释

患者男性,颈部见一直径3cm左右肿物,质柔软。

若肿块柔软,色暗红,如海绵状,压之可缩小,可诊为:()

A.脂肪瘤

B.皮脂腺囊肿

C.神经纤维瘤

D.静脉曲张

E.皮肤血管瘤

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