问题 多项选择题

合理子组原则是由休哈特提出的,其内容是“组内差异只由偶因造成,组间差异主要由异因造成”。前一句的目的是保证控制图上、下控制线的间隔距离6σ为最小,从而对异因能够及时发出统计信号。在取样本组,即子组时应在短间隔内取,以避免异因进入。根据后一句,为了便于发现异因,()。

A.在过程不稳,变化激烈时应少抽取样本

B.过程平稳时,则可多抽取样本

C.在过程不稳,变化激烈时应多抽取样本

D.过程平稳时,则可少抽取样本

E.以上都不对

答案

参考答案:C, D

阅读理解

B

Students’ Insurance

What Is Covered under Contents?

Under the “Contents” section your possessions---which you do not have to be listed---will be protected on “new for old” basis where items will be replaced as new---regardless of their age or condition.

“Contents” include books, radios, audio and video players, TVs, jewellery, home computers, furniture, household goods, other electrical equipment and sports equipment. They will be insured as follows:

Theft

Fire, Lighting, Explosion

Malicious(恶意)Damage

Storm, Flood and other natural disasters

But new-for-old cover does not include clothing and linen.

Where Does Cover Apply?

Anywhere in Australia whether in:

Your Living Place While at College

Your Parents’ Home or Any Temporary Residence(临时住处)---where you are staying when away from College

Your College or Students’ Union Building

College Storage during Vacations

Plus The Following Benefits Included Free

Loss or Damage to:

Gas, water and electricity meters and telephones---up to$300

TVs and videos rented in your name

Library books---up to $300

Daily things bought---up to $500 as to cover described under “Contents”

College or Landlord’s Possessions in your rooms by Fire or Theft (if you are legally responsible---up to $2,000)

Personal Money: from your room---up to $60

PLUS fraudulent(欺诈)use of your Credit Card---up to $1,000

61. If you lose an old video player, the insurance company will _____.

A. replace it with a new one  B. pay you up to $30 in insurance

C. pay you nothing for it is old         D. replace it with a used one

62. Which of the following statements is TRUE according to the passage?

A. Your household goods will not be insured due to natural disasters.

B. Your computer is insured when you are away from college.

C. You can be paid $2,000 for fraudulent use of your Credit Card.

D. Your rented car is completely insured if it is damaged.

63. All of the following are included in the insurance project except _____.

A. audio and video players, TV        B. jewellery, library books

C. clothing, linen and cars             D. furniture, home computers

64. It can be inferred from the passage that _____.

A. if you lose a radio you can get another one

B. if you have your possessions stolen outside Australia they are not insured

C. if a fire breaks out in your room you can get everything back

D. if your jewellery is stolen you will be paid as much as $300 

单项选择题