黄柏粉末镜检可见 A．油细胞 B．橙皮苷结晶 C．油室 D．晶纤维 E．乳汁管

阅读理解。

      Most people in Britain live in small family groups. More than a quarter of homes in Britain have only got one

person in them. Some of these are old people but some are people of twenty or thirty who choose to live alone.

35% of homes have two people in them, and another 17% have three people. 15% have four people in them, and

the other homes have five or more. 

     The families in Britain are small. It is unusual for parents to have more than two children. When children are

about eighteen or nineteen, they leave their parents' homes, and they often go to different cities. Sometimes they

only visit their parents two or three times a year.

1. How many homes in Britain have 3 people living in them? [ ]

A. 8% of homes.

B. 15% of homes.

C. 17% of homes

D. 35% of homes.

2. At what age do children in Britain usually leave their parents' homes? [ ]

A. About 18 or 19.

B. About 20 or 21.

C. About 25 or 26.

D. About 30 or 31.

3. What is the passage? [ ]

A. An invention.

B. A report.

C. A. play

D. A joke.

4. What does the passage mainly tell us? [ ]

A. Young people in Britain.

B. Old people in Britain.

C. Families in Britain.

D. The population in Britain.

5. According to the passage, which of following is right? [ ]

A. There are 25% of homes have 3 people in them.

B. There are 25% of homes have 2 people in them.

C. There are 25% of homes have 1 people in them.

D. There are 35% of homes have 3 people in them.

某公司目前拥有9个仓库，总库存量价值1200万，为了业务发展的需要，公司需增7个仓库。以每年库存持有成本为15%计算，仓库数量增加后，库存持有成本为（）万元。

A．1500

B．1549

C．240

D．1380

最适合用于登记存货的账簿是（ ）。

A．两栏式账簿

B．三栏式账簿

C．多栏式账簿

D．数量金额式账簿

快速路的设计车速是（）km／h。

A.30～50

B.60～100

C.20～40

D.40～60