在直线回归分析中,根据最小二乘法求得两条直线回归方程和。一般情况下,它们之间的关系是

题型:单项选择题 A1型题

问题:

在直线回归分析中,根据最小二乘法求得两条直线回归方程和。一般情况下,它们之间的关系是()

A.交叉

B.重合

C.交叉或重合

D.平行

E.平行或重合

考点:职业卫生主治医师职业卫生主治医师综合练习职业卫生主治医师综合练习题库
题型:单项选择题 A1型题

My mother __________ supper for me last week.[ ]

A. makes            

B. make              

C. maked            

D. made

题型:单项选择题 A1型题

东汉名医华佗医技高明,朝廷曾多次召他进宫作官,但均被他拒绝,最后惹怒曹操,竞被投入监狱惨遭杀害。从这个案例体现了华佗的医德思想是()

A.不怕艰苦

B.不分贵贱

C.不畏权势

D.不断进取

E.不图钱财

题型:单项选择题 A1型题

宋代四大书院中位于河南登封的是( )。

A.岳麓书院

B.白鹿洞书院

C.应天书院

D.嵩阳书院

题型:单项选择题 A1型题

上前牙牙根唇面宽于舌面的生理意义是()

A.与牙冠较宽的唇面相延续

B.抵抗意外碰撞的外力

C.抵抗向前的

D.与牙槽嵴形态相适应

E.补偿牙弓较大的外径

题型:单项选择题 A1型题

第二卷
第四部分:写作(共三节, 满分40分)
第一节阅读填空(共10小题; 每小题1分,满分10分)
阅读短文,根据所读内容, 在下表中的空格处填上适当的单词和短语,每空不超过3个单词。
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been proved that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor(香味)was added to the vitamin-enriched water, the rat did seem to develop a taste for it and kept drinking it even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria(自助餐厅) feeding arrangement, with a wide selection of baby food before them. They were given what ever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what’s best for them. Obviously, there is a ‘body wisdom’, which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seems to be greatly influenced by what is going on around us.
Research on eating habits
76._______       
To find out the relationship between the need of the body and eating.
 
78._______        
Subjects
Ways
77.           
 
Rats
●Given two water bottles  
without difference in
79.________.
●80.   __ water with fragrant
flavor and water with vitamins.
●81. _  water with vitamins to water without vitamins.
●Drink water with fragrant flavor first, then turn to water 82.      __  .
83.         of 6-12 months
Given whatever they pointed to or were interested in.
84.__   unusual eating patterns at first, later select a well-balanced diet.
Conclusion
Rats and babies have a 85.   ____   in selecting food.
 
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