不是心力衰竭代偿机制的是()。 A.Frank-Starling机制 B.心肌肥厚

题型:单项选择题

问题:

不是心力衰竭代偿机制的是()。

A.Frank-Starling机制

B.心肌肥厚

C.交感神经兴奋性增强

D.RAS激活

E.心肌耗氧增加

考点:山东住院医师危重病科ICUⅡ阶段专业理论专业理论题库
题型:单项选择题

登山运动员登上一无名高峰,但不知此山的高度,他们想迅速估测出高峰的海拔高度,于是他们利用所带的轻质绳子,系着山上不太规则的石子,做成简易单摆,用小钢卷尺来测绳子的长度L,用手表来测振动周期T,他们根据学过的物理知识很快就测出了此高峰的海拔高度.(地球表面的重力加速度g和地球半径R可作为已知条件.)

(1)他们至少要做______次实验,才能得到想要的数据;

(2)他们需要测量的数据是______;

(3)他们推导出的计算高峰的海拔高度的计算式是______.

题型:单项选择题
下列说法正确的有(  )
A.在一次抛掷硬币的试验中,甲同学说:“我只做了10次试验就得到了正面朝上的概率为30%”;
B.某同学在抛掷两枚硬币的试验中做了400次,得到“一正一反”的频率为26.7%,如果再做400次,得到的频率仍然是26.7%;
C.在投掷一枚均匀的正方体骰子的试验中,小明得到“1点朝上”的概率为
1
6
,那么他再做300次试验,一定有50次“1点朝上”;
D.在抛掷一枚硬币的试验中,小刚为了节约时间,同时抛掷5枚硬币,这样得到的结果不会受到影响
题型:单项选择题

女,35岁,消瘦、乏力、怕热、手颤1个月,夜间突然出现双下肢软瘫。急诊查:神志清,血压140/80mmHg,心率100次/分,律齐,甲状腺轻度增大、无血管杂音。

此病人的急诊处理应()

A.螺内酯(安体舒通)治疗

B.纠正电解质紊乱

C.静脉滴注氯化钾及胰岛素

D.吡啶斯的明和皮质激素治疗

E.脱水降颅压治疗

题型:单项选择题

As prices and building costs keep rising, the “do-it-yourself” (DIY) trend (趋势) in the U.S. continues to grow.

“We needed furniture(家具) for our living room.” Says John Ross, “and we just didn’t have enough money to afford it. So we decided to try making a few tables and chairs.” John got married six months ago, and like many young people these days, they are struggling to make a home at a time when the cost of living is very high. The Rosses took a 2-week course for $ 280 at a night school. Now they build all their furniture and make repairs around the house.

Jim Hatfield has three boys and his wife died. He has a full-time job at home as well as in a shoe making factory. Last month, he received a car repair bill for $ 420. “I was deeply upset about it. Now I’ve finished a car repair course, I should be able to fix the car by myself.”

John and Jim are not unusual people. Most families in the country are doing everything they can to save money so they can fight the high cost of living. If you want to become a “do-it-yourself”, you can go to DIY classes. And for those who don’t have time to take a course, there are books that tell you how you can do things yourself.

小题1:We can learn from the text that many newly married people _______.

A.find it hard to pay for what they need

B.have to learn to make their own furniture.

C.take DIY courses run by the government.

D.seldom go to a department store to buy things小题2:John and his wife went to evening classes to learn how to _____

A.run a DIY shop

B.make or repair things

C.save time and money

D.improve the quality of life.小题3: When the writer says Jim has a full-time job at home, he means Jim ____

A.makes shoes in his home

B.does extra work at night

C.does his own car and home repairs

D.keeps house and looks after his children

题型:单项选择题

下面函数的功能是
char*fun(char*strl,char*str2)
while((*strl)&&(*str2++=*strl++));
return str2;

A.求字符串的长度

B.比较两个字符串的大小

C.将字符串str1复制到字符串str2中

D.将字符串str1接续到字符串str2中

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