不稳定型心绞痛与非ST段抬高的心肌梗死的主要区别在于A．疼痛持_爱下问搜题

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问题单项选择题

不稳定型心绞痛与非ST段抬高的心肌梗死的主要区别在于

A．疼痛持续时间≤20分钟

B．血中心肌梗死标记物的升高与否

C．48小时内是否有多次心绞痛发律

D．是否在安静状态下疼痛

答案

参考答案：B

单项选择题

下列不是兴奋性神经递质的是（）。

A.多巴胺

B.苯丙氨酸

C.去甲肾上腺素

D.谷氨酸

E.门冬氨酸

完形填空

A group of frogs were traveling through the woods, and two of them fell into a deep pit. All the other frogs      the pit. When they saw how      the pit was, they told the two frogs that they might as well be    .
The two frogs ignored what       were saying and      to jump up out of the pit with all of their physical strength. The other frogs       telling them to stop. Finally, one of the frogs       the comments, seriously considered them, and gave up. He       down and died.
The other frog continued to jump as     as he could. Once again, the crowd of frogs shouted at him to stop the       and just die. He jumped even harder and finally      it out. When he got out, the other frogs said, “Did you not       us?” The frog explained to them that he was       . He thought they were       him the whole time.
This story teaches two lessons: First, there is power of life and death in the       . An encouraging word to someone who is        can lift them up and help them make it through the day. Second,a destructive word to someone who is down can be       it takes to kill them. Be      of what you say. Speak life to those who cross your path.
The        of words is great. It is sometimes hard to understand       an encouraging word can go such a long way. Anyone can speak words that tend to rob another of the spirit to continue in difficult times.

A．jumped over

B．looked through

D．gathered around

A．came up with

B．paid attention to

C．got used to

D．got along with

D．competition

C．encouraging

B．communication

D．misunderstanding