有竞争力的产品具备的特点是()。A、没有卖点 B、有卖点,性能稳定 C、一成不变 D

题型:单项选择题

问题:

有竞争力的产品具备的特点是()。

A、没有卖点

B、有卖点,性能稳定

C、一成不变

D、有卖点,性能不稳定

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题型:单项选择题

女性,18岁。视力下降2年,伴反复发作肢体瘫痪1年,经2次住院治疗,有所缓解。脑脊液寡克隆带阳性。视觉及体感诱发电位异常。MRI:脑白质多发性T2加权高信号。

该病人初步诊断依据是()。

A.青年女性

B.视力障碍

C.脑脊液寡克隆带阳性

D.MRI见脑白质多发性T2加权高信号

E.反复发作及缓解的中枢神经系统多灶性损害

题型:单项选择题

环境影响评价工程师以( )的名义接受环境影响评价委托业务。

A.所在环评单位

B.项目的建设单位

C.个人

D.工作单位

题型:单项选择题

既善化湿,又能解暑止呕的药物是

A.厚朴

B.苍术

C.砂仁

D.白豆蔻

E.藿香

题型:单项选择题

阅读理解

     Being thirteen has certain problems that only another thirteen-year-old would understand. The biggest,

I think, is learning to get along well with adults. I have found that when dealing with grown-ups, it is wise

to remember two things.

    1. Always use your head

    2. Never use your head

      For instance, one day just before supper, my mother sent me to the store for a loaf of whole-wheat

bread. They didn't have any. When I told my mother, she said, "Well, what kind did you get?" I told her

I didn't get any. She looked as if I had just announced that I was leaving home for good. "For goodness'

sake!" She said, "If they hadn't had whole-wheat, you should have got something else! Why don't you

use your head?"

     Not long after that, she sent me to the store for red oilcloth. They didn't have any, so I bought seven

yards of purple. I thought it was pretty. Mother didn't. She said, "Who ever heard of purple oilcloth in a

red kitchen?" I told her I was only trying to use my head. She said. "Well, don't ! And in the future, if you

can't get what I send you for, don't get anything."

     See what I mean?         

     There are other things that seem a little strange, too. If my father goes out for the evening, he tells me

to "look after" my mother and sister. But if the family goes out, and I want to stay home, my father won't

let me. He doesn't feel comfortable if I am home alone. That means I am old enough to "look after" my

mother and sister but not old enough to "look after" myself.

       Another problem is what to do when you trip over the cat and land with your head in the refrigerator, causing a large lump to appear just over the right eyebrow. In that case, your father could feel free to say with a few choice words. Your sister could shed enough tears to dampen the whole room. Your mother

could, and probably would, do both. But you? You are thirteen and can't do anything! You are too young

to curse, and "big boys" don't cry. So you just stand there looking more stupid than usual. But in spite of

all this I still think thirteen is a wonderful age!

1. The main idea of the passage is that____.

                      

A. young children are boring

B. being thirteen involves too may responsibilities

C. a thirteen-year-old boy is the sun of the family

D. thirteen-year-olds have special problems

2. The author says the biggest problem is_____.   

                   

A. learning how to use one's head

B. assuming responsibilities

C. showing you can be trusted

D. learning how to get along with grown-ups

3. The author thinks that his father should allow him to ____.       

             

A. go shipping by himself  

B. stay at home alone

C. look after the family  

D. use his head

4. The author complains that there is no acceptable way for a thirteen-year-old boy to____.

A. prevent his sister from crying

B. act when he is in the kitchen

C. avoid tripping over the cat    

D. behave when he hurts himself

5. The author believes being a boy of thirteen is _____.         

           

A. frustrating   

B. painful    

C. delightful    

D. tiring  

题型:单项选择题

有关健康人运动试验时正常生理反应的描述,不正确的是()。

A.运动过程中心率随着运动量的增加而加快

B.随着运动量的增加,心肌耗氧量增加

C.随着运动量的增加,QRS波群时限增宽

D.收缩压随运动量的增加而升高

E.舒张压随运动量的增加开始升高,而后轻度下降

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