氨苯蝶啶作用的特点是（） A.产生低氯碱血症 B.具有抗醛固酮作用 C.产生高血糖反

阅读理解。

    Like many people, I have no clear idea about heroes. At some point, we all wonder if we need a hero and

what a hero really is.

    Although there are a lot of differences in cultures, heroes around the world generally share a number of

characteristics (特点) which give us courage and make us want to learn from them. A hero does something

worth talking about. A hero has a special story to tell and people think highly of it. But a hero is not just the

person with great fame (声誉).

    A hero has powers (力量) larger than himself. Some people want to live like a hero, and they have to

experience life with new and further meaning. A sure test for would-be heroes is what or whom they serve.

What do they want to live and die for? If the answer suggests they serve only their own fame, they may be

famous persons but not heroes.

    A hero has a vision from the mountaintop. He has the power to move people. He creates new possibilities.

Without Gandhi, India might still be part of Britain. Without Martin Luther King, Jr., Americans might take

different buses, eat in different restaurants, go for walks in different parks, and shop in different stores

because of the different colours of their skin.

    There might be changes in society without a hero, but the speed of change would be rather slow. Thanks

to heroes in history, they make the society develop so rapidly.

1. According to this passage, a hero is a person who always ______. [ ]

A. gives us courage

B. thinks highly of others

C. shares great fame

D. stands on the mountaintop

2. If you want to live like a hero, you should ______. [ ]

A. experience a new and meaningful life

B. listen to something worth talking about

C. serve your own fame and try to be famous

D. know where and how you want to live and die

3. The underlined word "vision" in the passage means "______". [ ]

A. 风景

B. 想象

C. 远见

D. 形象

4. Black people in America used to ______ before Martin Luther King, Jr.. [ ]

A. shop at the white's stores

B. drive buses with the white

C. take walks in the white's parks

D. eat in restaurants without the white

5. What can we learn from the passage? [ ]

A. We don't need heroes anymore at some point now.

B. Heroes are all the same though different in cultures.

C. People get power from heroes to move to a new place.

D. Our society has developed faster because of heroes in history.

患者女性，76岁。因突发胸痛1天伴晕厥急诊，心电图如图3-3-13所示。

根据患者的病史和心电图表现，应诊断为（）。

A.急性前壁非Q波型心肌梗死

B.变异型心绞痛

C.Brugada综合征

D.急性前壁Q波型心肌梗死

E.急性心包炎

（2011•常德）质量检测部门抽样检测出某品牌电器产品的次品率为5%，一位经销商现有这种产品1000件，估计其中次品有　　件．

女性患者，28岁。以"右下腹至全腹剧痛10小时"为主诉入院。患者入院前一天参加宴会，饮酒饱餐后3小时突然出现右下腹剧痛，疼痛呈持续性，刀割样，并很快转移至全腹。深呼吸、变换体位时加剧，静卧、两腿屈曲时腹痛减轻，同时伴有恶心，呕吐当日食物，无咖啡样物及鲜血。病后自觉畏寒、发热，无寒战。未排气、排便。既往史：无右下腹疼痛史，有反复发作的中上腹疼痛及反酸、烧心史。服用胃药可缓解，无呕血、便血史。查体：T38.0℃，P88次／分，R37次／分，BP120/80mmHg，急性面容，神志清楚，平卧位，两腿屈曲，心肺查体未见异常，腹部平坦，未见胃肠型及蠕动波，全腹肌紧张，拒按，有明显压痛及反跳痛，右下腹为主，肾区叩痛阴性。

下一步应为患者做的检查是（）

A.立位腹平片

B.血、尿常规及淀粉酶

C.上消化道造影

D.腹部超声

E.肛诊

F.肺CT

G.胃镜

作为线路辅助保护的无时限速断的最小保护范围，在正常运行方式下，一般不小于被保护线路的（）。

A.10％

B.15％

C.20％

D.15％～20％