Excel有几类函数？引用函数以什么符号开头？

保险公估人员必须具备的专业知识不包括下列（）。

A.保险法律

B.民法

C.保险险种

D.保险条款和保险实务

阅读表达。

     [1]Why can't I get it done?

     [2] This is one question millions of people over the globe ask themselves every now and then. It is not

as if you are not working hard, but you simply may not know that there is a difference between work and

productivity. Your plan is what gives you a clear picture of what you are aiming at, but the method of

achieving may vary from time to time. That you did not meet up with a deadline does not mean you were

not working on it. The problem is whether you will be able to manage time.

     [3] Before you start on the next activity, task or project, first ask yourself why you want to do what

you are about to do now. You will by this be able to know if the task should be done, and if the timing is

right.

     [4] Doing the right thing at the wrong time makes it absolutely wrong. So it is not just enough to do

what is right, also consider           . Your time has value, when you spend it on what is right at that instance. On the other hand, the value of your task is when   it   is done at the right time.

     [5] You will feel sorry about the time spent on what was not profitable to you. Time can not be

wasted, because it can not be preserved and replaced. You are always doing something with your time.

What matters is the value of what you are doing at the moment with your time.

     [6] The desire to make a difference begins with the ability to take the right decision on what to do. It

will become simple if you learn to manage time effectively.

1. What is the main idea of the text? (within 10 words)

2.  Fill in the blank in Paragraph 4 with proper words. (within 10 words)

3. Complete the following statement with proper words. (no more than 5 words)

You will regret           doing things which were of no value to you.

4. What should be the first step to get some work done? (within 12 words)

5. What does the underlined word "it" (line 3, paragraph 4) probably refer to? (no more than 3words)

男性，20岁，因着凉后出现畏寒、发热、咳嗽、咽痛、腹痛、腹泻，为稀便。T38.6C，P100次／分，BP100/60mmHg，腹部压痛不明显，便常规WBC0～2个/HP，RBC0～1个/HP，血常规WBC4.5×10/L。最可能的诊断是（）

A.急性上呼吸道感染

B.病毒性肠炎

C.急性菌痢

D.阿米巴痢疾

E.以上都不是

下列对光盘的叙述错误的是（）。

A.光驱工作时，光头与和盘片相接触

B.光盘一个扇区的容量为2KB

C.单速DVD的速度是1.35MB/s

D.光盘数据轨道是一条由里向外，顺时针方向的螺旋展开线

碘量法测定废气中光气时，用烟气采样器取样适用于光气浓度较高的排气管道。