设集合A={1，2，3}，则集合A的子集的个数是（ ） A．3个 B．6个 C．

We call the Chinese New Year the Spring Festival（春节）. There is a name for each Chinese year. We may call it the year of the sheep , the year of the monkey or the year of the dog. And this year is the year of the horse.

Before New Year’s Day, people are busy shopping and cleaning their houses. On New Year’s Eve, there is a big family dinner. After dinner, all the family stay up late to welcome the New Year. On the first day of the New Year, people put on their new clothes and go to visit their friends and relatives（亲戚）. They say “good luck” and some other greetings to each other. People usually have a very good time during the festival.

小题1:How many Chinese festivals are talked about (谈论）in this passage ?

A．One.

B．Two.

C．Three.

D．Four.小题2:We can find every Chinese year is given ___________ name.

A．an animal

B．a plant

C．a family

D．a full小题3:How do Chinese people usually spend New Year’s Eve ?

A．They put on new clothes and go to the park .

B．They visit their friends and relatives

C．They are busy shopping and cleaning their houses

D．They have a big dinner and stay up late to welcome the New Year.小题4:On New Year’s Day, people say “___________” to each other when they meet

A．Merry Christmas

B．Good luck

C．Happy New Year

D．Both B and C小题5:The best title for this passage (本文的最佳题目)is ____________

A．Good Time

B．The Spring Festival

C．Big Dinner

D．The Year of the Horse

在发酵现象演示实验中，产生的气泡是（　　）

A．氧气

B．氮气

C．二氧化碳

D．空气

一种拖拉机的运输车斗（无盖），长2米，宽1.2米，高0.5米．要做这样的车斗，至少需要多少铁板？如果用它运石灰浆，最多可盛放石灰浆多少立方米？

正常中骨盆平面呈（）。

A．横椭圆形

B．纵椭圆形

C．正圆形

D．正三角形

E．倒三角形

动物发生腹泻时，其伴随症状一般不包括______。

A．腹痛
B．体温升高
C．呼吸困难
D．呕吐
E．脱水及电解质平衡失调