慢性肺源性心脏病所致心力衰竭首要的治疗措施为() A.卧床休息、低盐饮食 B.使用小

题型:单项选择题

问题:

慢性肺源性心脏病所致心力衰竭首要的治疗措施为()

A.卧床休息、低盐饮食

B.使用小剂量强心剂

C.使用小剂量作用缓和的利尿剂

D.应用血管扩张剂减轻心脏负荷

E.积极控制感染和改善呼吸功能

考点:北京住院医师精神科Ⅰ阶段呼吸内科呼吸内科题库
题型:单项选择题

有理数只有正数和负数。[ ]

题型:单项选择题

若关于x的一元二次方程mx2-2x+1=0有实数根,则m的取值范围是(  )

A.m<1

B.m<1且m≠0

C.m≤1

D.m≤1且m≠0

题型:单项选择题

一个边长为10cm的正方体重200N,放在水平桌面上,用一个弹簧测力计竖直向上提物体,当弹簧测力计的读数为50N时,物体对桌面的压力是______N,桌面受到的压强为______Pa.

题型:单项选择题

阅读理解。

     It was a warm April day when a big fat envelope came in the mail from the only college I had ever

imagined attending. I tore open the packet. My eyes were fixed on the word "congratulations". I don't

remember ever smiling so wide.

     Then I looked at my rinancial package.

     The cost of Dream School's tuition, room and board was around  $ 40,OOO-an impossible sum !

How could I afford to attend? What good reasons did I have to go there when three other fine colleges were offering me free tuition? My other choices were good, solid schools even if they weren't as famous as my first choice.

     In my mind, attending my dream university would be the only way to realize my dream of becoming a

world-class writer. My parents understood how l felt. They told me that even though it would be a financial problem, I could go wherever I would be happiest. But as I was always careful with money, l wasn't sure what to do.

      One of the schools that offered me a full ride had an informational dinner one night in the spring.

Considering my parents' financial difficulties, l decided to drive the 45 minutes and attend. At first, all I had planned to do was smile politely, eat free food, listen quietly. But I surprised myself.

      At dinner the president of the university talked about the wonderful activities on campus including guest lectures and social gatherings. He also made it perfectly clear that free food would be offered at all future

events. He continued with explanations of professors, class sizes, activities, and sporting events on

campus.  As he spoke, I began to realize that this school, though not as good as my first choice, might be

the best one for me. It seemed small yet with many great programs. It seemed challenging yet caring.

      As the president ended his speech, we clapped politely and pushed back our chain.  As I walked out

of that door, a feeling of comfort washed over me. Looking at the campus that night, l realized that I would be spending the next four years fighting there.

        In all honesty, my university is not as well-known as my " dream"  university.  However, it turned out

to be the right choice of schools for me.

1. How did the author feel when he started to read the letter?

A.  He was full of joy.                      

B.  He was lost in his dream.

C. He was worried about the money.      

D. He was uncertain which school to go to.

2. We can learn from the passage that the parents were _____. 

A. honest      

B. strict          

C. supportive        

D. decisive

3.  In Paragraph 5, " offered me a full ride"  can be replaced by " _____".

A. would pay for transport to the school          

B. would show me around the campus

C. would offer free meals at all events      

D. would charge me nothing for tuition

4. What does the author mainly want to say?

A. Your second-choice college may actually be your best fit.

B. You should consider comfort in your choice of schools.

C. You should try your best to attend your dream school.

D. Your choice of schools should be based on their fame.

题型:单项选择题

《中华人民共和国国防法》于()由第八届全国人民代表大会第五次会议审议通过。

A、1997年3月12日

B、1997年4月14日

C、1996年5月14日

D、1997年3月14日

更多题库