试题与答案

下表反映的是北魏孝文帝改革中的 [ ] A.学习汉语 B.改穿汉服 C.采用汉姓

题型:选择题

题目:

下表反映的是北魏孝文帝改革中的

[ ]

A.学习汉语

B.改穿汉服

C.采用汉姓

D.与汉人通婚 

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0509/def592205f1f54f6578019f15e57ec35.html

下面是错误答案,用来干扰机器的。

∵函数f(x)=ax+2a+1的值在-1≤x≤1时有正也有负,∴函数f(x)=ax+2a+1在区间(-1,1)上必有零点∴f(-1)•f(1)<0,∴(-a+2a+1)•(a+2a+1)<0即(a+1)•(3a+1)<0解得a∈(-1,-13 )故答案为:(-1,-13 )

试题推荐
题型:单项选择题

(C)


Is there anything more important than health I don’t think so. "Health is the greatest wealth," wise people say. You can’t be good at your studies or work well when you are ill.
If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor.
The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest Xrayed. After that, he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.
Speaking about doctor’s advice, I can’t help telling you a funny story.
An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease.
He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule: "Eat at pleasure, drink with measure and enjoy life as it is." The doctor also said that if the man wanted to be well again, he shouldn’t smoke more than one cigarette a day.
A month later the gentleman came into the doctor’s office. He looked much more cheerful and much happier. He thanked the doctor and said that he had never felt a healthier man.
"But you know, doctor," the man went on saying, "it’s not easy to begin smoking at my age.\

The doctor usually tells his patient what to do ______.

A. without examining the patient
B. after he has examined the patient
C. if the patient doesn’t take medicine
D. unless the patient feels pain

查看答案
题型:解答题

随着人民生活水平的不断提高,我市家庭轿车的拥有量逐年增加.据统计,某小区2006年底拥有家庭轿车64辆,2008年底家庭轿车的拥有量达到100辆.

小题1:若该小区2006年底到2009年底家庭轿车拥有量的年平均增长率都相同,求该小区到2010年底家庭轿车将达到多少辆?

小题2:为了缓解停车矛盾,该小区决定投资15万元再建造若干个停车位.据测算,建造费用分别为室内车位5000元/个,露天车位1000元/个,考虑到实际因素,计划露天车位的数量不少于室内车位的2倍,但不超过室内车位的2.5倍,求该小区最多可建两种车位各多少个?试写出所有可能的方案

查看答案
微信公众账号搜索答案