在CoreDRAW中利用矩形工具绘制正方形时，需要按住键盘上的（）键然后向斜下或斜上

阅读理解。

     Mr. Briggs got a job with an insurance company (保险公司) after he left school and went around visiting

people in their homes to sell them life insurance. One day, after he had been working for the company for about a year, the insurance manager sent for him and said,"Mr. Briggs, I have been looking at your record as a

salesman with our company, and there is one thing that surprises me about it. Why have you been selling

insurance only to people over 95 years old, and why have you been giving them such generous(宽厚的)

conditions? You'll ruin our company if you go on like that."

      "Oh, no, sir," answered Mr. Briggs at once,"Before I started work, I looked at the figures (数字) for deaths

in this country during the past ten years, and I can tell you that few people die at the age of 95."

1. Before he worked in an insurance company, what was Mr. Briggs?

A.He was a manager.

B. He was an official.

C. He was a student.

D. He was a businessman.

2. The underlined word "ruin" in the first paragraph means ______.

A. lose

B. break

C. leave

D. destroy

3. As a salesman with the company, Mr. Brigs ________.

A. visited people to ask them to work with him

B. called on people to make them join the company

C. saw old people in order to help them

D. visited many people so as to offer insurance

4. What was it that surprised the manager?

A. Mr. Briggs sold life insurance only to 95 people.

B. Mr. Briggs sold insurance only to people of more than 95.

C. Mr. Briggs had ruined the insurance company.

D. Mr. Briggs gave people generous conditions.

5. Which of the following is true according to the passage?

A. The number of the very old people who died every year is small.

B. Mr. Briggs began to look at the figures after he started work.

C. A great number of very old people die every year.

D. Mr. Briggs had studied the figures for deaths for several years.

离心泵消耗功率过大的原因是什么？

我国每年＜5岁儿童肺炎死亡率占世界儿童肺炎死亡率的

A．10%

B．21%

C．28%

D．35%

E．60%

下列对模板的声明中，正确的是

A．template＜T＞

B．template＜class T1，T2＞

C．template＜class T1，class T2＞

D．tamplate＜class T1；class T2＞

中年女性。查： 牙体未见异常，牙龈红肿。有真性牙周袋形成，冷热刺激痛，X线显示：牙槽骨吸收1/3。诊断：牙周牙髓联合病变。牙周炎引起牙髓炎的途径最可能是（）。

A．根管

B．管间侧支

C．根管侧支

D．副根管

E．根尖分歧