问题 多项选择题

储罐区低倍数泡沫灭火系统按泡沫喷射形式不同,分为()。

A.液上喷射系统

B.半液上喷射系统

C.液中喷射系统

D.液下喷射系统

E.半液下喷射系统

答案

参考答案:A, D, E

阅读理解

阅读理解。

     There are four seasons in a year in China. Spring comes in February. May, June and July make the

summer season. August, September and October make the autumn season. November, December and

January make the winter season. In different seasons people wear different clothes and do different things.

For example the weather is hot, so people usually wear cool clothes and do things like swimming, boating

or surfing.

     Near the North Pole (北极) there are only two seasons. They are winter and summer. In winter,

nights are long. For more than two months you can't see the sun, even at noon. In summer the days are

long. For more than two months the sun never goes down and there is no night.

     The people living near the North Pole are called Inuit (因纽特人). In summer they live in tents and

catch deers (鹿) for food. In winter they live in small round snow houses. They can build a snow house

in two hours. They travel around by using dogs to carry their things. They make holes in the ice and

catch fish and seals (海豹). They eat much meat but not many vegetables.

1. The two seasons near the North Pole are _____. [ ]

A. spring and autumn

B. summer and winter

C. rainy season and dry season

D. spring and winter

2. You can't see the sun for _____ in North Pole in a year.[ ]

A. a season

B. a year

C. more than two months

D. half a year

3. Autumn in China _____.[ ]

A. is cold

B. lasts from August to October

C. hot

D. come after spring

4. Near the North Pole _____ in summer. [ ]

A. the days aren't long

B. the nights are long

C. there's no night for more than two months

D. 24-hour days last two months

5. The people in the North Pole eat much _____. [ ]

A. vegetables

B. meat

C. milk

D. bread

单项选择题