2岁以后收缩压的计算公式是收缩压(kPa)=____________________

青春期心理发展的特点有[ ]

①自我意识迅速增强，“成就感”强烈 

②既想对父母隐瞒自己的感情，又渴望向朋友倾诉  

③心理和生理已经成熟，完全可以自己处理任何事情 

④性发育加速，性意识萌动，渴求与异性交往

A、①②     

B、①②④ 

C、①②③ 

D、②③④

第二节：语法填空（共10小题；每小题1分, 满分10分）

We eat for many different reasons but not always for the right reason. Most people choose to eat something just  26   the food tastes delicious.   27  , if we choose based   28   taste alone, regardless of nutrition(营养) or healthy eating habits, then gaining weight is inevitable. Changing your eating habits means   29   you need to look at the nutritional value as well as the amount of fat.

Healthy eating habits come from eating foods that are low  30   fat. Learn to read labels so that you can make good decisions; every   31   (package) food product has a label that tells you the nutritional value,   32   number of calories and fat content.

Eating habits usually stay the same as we grow from childhood to adulthood.  33  (fortune), our metabolism（新陈代谢）tends   34   (slow) down as we get older. If you are raised on sugar and high-fat foods, the amount of fat keeps building as you get older   35   the cycle is broken by good eating habits or exercise, and perfectly both.

CT摄片的基本要求不包括：

A．合适的窗宽、窗位

B．按一定的解剖顺序摄片

C．增强前后的图像要分别摄片

D．摄取定位片

E．胶片曝光时间设定

我们通常称之为“死水”的水是（）。

A、千滚水

B、不开的水

C、老化水

D、重新煮开的水

试述砂岩的油气储集性能与岩性的关系，简述我国中新生代陆相砂岩储集层的岩性特征？