问题 单项选择题

关于心绞痛描述中,下列不正确的是

A.恶化型心绞痛发作时心电图示有关导联的ST段抬高,与之对应的导联则ST段可压低

B.卧位型心绞痛发于休息或熟睡时,不易为硝酸甘油所缓解

C.变异型心绞痛为冠状动脉突然痉挛所致,病人迟早会发生心肌梗塞

D.急性冠状动脉功能不全在休息或睡眠时发生疼痛,历时较长,但无心肌梗塞的客观证据,常为心肌梗塞的前奏

E.梗塞后心绞痛是急性心肌梗塞发生后一个月内又出现的心绞痛

答案

参考答案:A

阅读理解

阅读理解。

     We live in a very competitive world. Everybody seems to be competing with someone at

some level. Each week we spend hours playing or watching others compete in sporting activities

all over the world. We cannot help being impressed by the level of excellence that these people

achieve.

     In sport and business, competition encourages excellence in performance. Where there is no

competition, improvement in performance is less likely. Some level of competition is a have-to in

all aspects of life.

     The following story makes this point.

     As two friends are hiking in the forest they encounter a huge, ferocious and obviously hungry

Grizzly Bear. Its next meal has just come into sight, and they are it! The first friend calculates that

the bear will overtake them in 27.3 seconds. At that point, she panics; realizing there is no escape.

She faces her friend, with the fear of death in her eyes. To her amazement, she observes that her

friend is not scared at all. To the contrary, her friend is quickly but calmly taking off her hiking boots

and putting on jogging shoes. "What do you think you're doing?" the first hiker says to her companion,

"You'll never be able to outrun that grizzly." "That's true," says the companion, "but all I have to do

is outrun you."

     We all compete when the motivation is strong enough. However, competition is not the real

purpose of life. Fulfilling the measure of our creation can only be achieved individually.

     Most of time, we are not in competition with any other person, so we do not have to compare

ourselves with others. There is only one person that can fulfill our role and that is us. This means

that others cannot beat us to the finish line because there is no race. This is not to say that others

do not have a similar role to us, but it is never the same. This is important to understand if we are

going to enjoy life. Every human being is unique and cannot be duplicated. In this, I am not referring

to the body, only to the spirit, soul, or the essence of a person.

1. The first 4 paragraphs tell us that competition        

A. is necessary though harmful

B. only exists in sports and business

C. is unavoidable and beneficial

D. is a fight against oneself

2. Why is the story of two friends told in the passage?

A. To advise friends to be loyal even in competition.

B. To expose the weak side of friendship when tested.

C. To support the author's own argument on competition.

D. To offer evidence of necessary competition in life.

3. From the last two paragraphs we learn that           .

A. competition plays an important role in social development

B. we don't have to compete since we are all different

C. we have to beat others in order to survive

D. there is more to life than just competition

4. As a whole the passage advises the readers to       .

A. realize we are living in a world of competition

B. face competition in a balanced state of mind

C. have a strong sense of being a possible winner

D. value friendship however fierce competition may be

多项选择题