最常用和最简单的无创伤性心率监测法是（） A.心音图 B.胸前区听诊 C.食管听诊器

阅读短文，选择正确答案。

     Look at the center circles of Diagram (图)A and Diagram B.       

Which of the centre circles looks larger? 

     Take a first look and you probably think that the centre circle in Diagram A is smaller than that in Diagram B.

In fact , they are exactly the same size.

     Then look at the picture on the right. What do you see? A vase? Or two faces? 

Does the picture change quickly from one to the other again and again? Maybe or maybe not, but you can never

see them at the same time. 

     "What's happening? Is something wrong with my eyes?" You may wonder at what you see. Don't worry.

Here is how it goes:

     When we look at things, our eyes send messages to our brains and then our brains interpret (解读) the

information. However, sometimes our brains interpret the received information in a wrong way. It seems that

our eyes are playing a joke on us. This often happens and we call it "Visual illusion" (视觉错误). 

     Movie makers often make use of illusions. They make the objects around actors much smaller or bigger than

usual. This makes us believe that the actors are much larger or smaller than they usually are. The movies

Jurassic Park and Honey I shrunk the kids just make use of illusions.

1. The centre circle in Diagram A looks smaller than that in Diagram B. That's because            . [ ]

A. something is wrong with our eyes

B. the two circles are not the same size

C. our brains interpret the information in a wrong way

D. the two pictures change quickly from one to the other

2. What's the right order according to the passage?

    a. We look at things with our eyes.              b. Our brains interpret the messages.

    c. Our brains tell us what we have seen.      d. Our eyes send messages to our brains. [ ]

A. adbc

B. cabd

C. acdb

D. bcad

3. Movie makers make use of visual illusions to             . [ ]

A. help the actors look better

B. make the actors much braver

C. help the actors become stronger

D. make the actors seem different in size

4. In the picture on the right, it seems that Line AB is shorter than Line CD, but in fact  

    Line AB is as long as Line CD. Which paragraph can explain what has happened to our eyes? [ ]

A. The second one.

B. The third one.

C. The fifth one.

D. The sixth one.

5. The text is probably taken from             . [ ]

A. an advertisement

B. a science book

C. a movie magazine

D. a story book

某井油层深度为1000m，静压为11MPa，按公式计算应选用压井液相对密度为（）。

A、1.00~1.10

B、1.10~1.15

C、1.20~1.25

D、1.25~1.30

下列类的构造函数不能通过编译，正确的构造函数应该是 【15】 。
# inelude＜iostream. h＞
class Samplepublic:
int ns
const int con,
Sample(int m) con= m+1; n= m；
void disp() cout＜＜’"normal: n="＜＜n＜＜end1;
void disp()const cout＜＜"static: n="＜＜n＜＜ end1;
;
void main() const Sample a(12),
Sample b(13),
a. disp( ),
b. disp()
cout＜＜a, n＜＜ "＜＜b. con＜＜end1;

下列关于室内空气计算参数的说法中不正确的为（）

A.民用建筑和工业建筑采暖室内空气计算参数不同

B.舒适性空气调节和工艺性空气调节室内空气计算参数不同

C.冬季和夏季室内空气计算参数不同

D.冬季采暖和冬季空调室内空气计算参数不同

税务机关采取税收强制执行措施时，对纳税人未缴纳的滞纳金和罚款必须同时强制执行。（）