Every year people celebrate the Spring Festival in China. Usually it is in January or February. It’s the most important(重要的) festival in China. So before it comes, everyone buys many things, and they often make a special kind of food called dumplings. It means “come together”. Parents always buy new clothes for their children and children also buy presents for their parents. On the Spring Festival eve(除夕), all the family members come back home. They sing, dance and play cards. When they enjoy the meal, they give each other the best wishes(祝愿) for the coming year. They all have a good time.

小题1:Which is the most important festival in China?

A．the Mid-Autumn Festival

B．The Spring Festival

C．Children’s Day

D．May Day小题2:The Chinese usually have their Spring Festival in________ .

A．January or February

B．February or march

C．September or October

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

A．Fruit

B．Fish

C．Dumplings

D．chicken小题4:The food dumpling means “_________”

A．be nice

B．be hungry

C．come together

D．come back小题5:When Chinese people are having dinner on the Spring Festival eve, they ____.

A．sing, dance and play cards

B．buy each other presents

C．never drinks

D．never sings

若主动轮圆周速度v₁=100m/s，从动轮圆周速度v₂=99m/s，则带传动的滑动率为______。

A．0.1

B．0.01

C．1

D．0.001