汽油机的压缩冲程中，汽缸内汽油和空气混合物的压强，温度 。

Every year there is the Spring Festival in China. Usually it is in January(一月)or February（二月）. It is the most important festival in China. So before it comes, everyone has to prepare things. They buy pork, beef, chicken, fruit and many other things. And they often make a special(特别的) kind of food called “dumplings”. It means “come together” in Chinese. On the day before the festival, parents buy new clothes for their children and children also buy presents for their parents. On Spring Festival’s Eve, all the family members come back to their home. This is a happy moment. They sing, dance and play cards. Others get the dinner ready. When they enjoy the meal, they give each other the best wishes for the coming year. They all have a good time.

小题1:        is the most important festival in China?

A．Mid-autumn Day

B．The Spring Festival

C．Children’s Day

D．Teachers’ Day小题2:The Chinese usually have their Spring Festival in        .

A．January or February

B．January or March

C．summer

D．autumn小题3:What’s the special kind of food for the Spring Festival in China?

A．Cakes.

B．Pudding.

C．Hotdog

D．Dumplings.小题4: The food “dumplings” means “       ”.

A．be delicious

B．be hungry

C．come together

D．be happy小题5:When they are having dinner on Spring Festival’s Eve, the Chinese    .

A．eat Candy

B．eat moon cakes

C．never drink

D．give each other the best wishes

甲、乙两人从赤道出发，甲向北行，乙向东行，如果两人前进方向保持不变，将会出现的情况是 [ ]

A、甲、乙两人都可回到出发地点

B、乙能回到出发地点，甲则不能

C、甲能回到出发地点，乙则不能

D、甲、乙两人都不可能回到出发地点

生物反应器是指（   ）

A．转基因动物

B．转基因植物

C．转基因微生物

D．转基因生物

消渴的主要特征

A．多饮

B．多食

C．多尿

D．多大小便

E．身体消瘦

目前，我国社会发展面对的挑战有（）

A、转变经济发展方式刻不容缓的迫切性和严峻性

B、国有企业数量下降，国有经济的控制力严重不足

C、创新社会治理模式、维护社会和谐稳定

D、执政方式和执政理念需要适应从革命党到执政党的变化