吃腐乳时，腐乳外部有一层致密的“毛”，它是由什么形成的[ ]

搜题请搜索小程序“爱下问搜题”

问题选择题

A．腐乳外层蛋白质凝固形成

B．细菌繁殖形成

C．人工加配料形成

D．霉菌菌丝繁殖于豆腐表面而形成

答案

答案：D

阅读理解

阅读理解。

Alice is a 14-year -old girl. There are three people in her family: her father, her mother and she. They are

in Shanghai. Alice likes the colour of red. Look, her jacket and bag are red. She is in Class 4. There are 22

boys and 18 girls in her class. Her good friends Liu Mei and Li Hong are in Class 4, too. Miss Wang is their

maths teacher. She is a good teacher. Her classes are interesting. Maths is not difficult for them!

Alice likes playing computer games, but she doesn't play them every day. She plays sports every day. It

is good for her health.

1. _____ people are in Alice's family. [ ]

A. Six

B. Five

C. Four

D. Three

2. Alice's ______ and _____ are red. [ ]

A. bag; erase

B. bag; notebook

C. jacket; bag

D. jacket; hat

3. _____ students are in Alice's class. [ ]

A. 40

B. 28

C. 22

D.18

4. Miss Wang's classes are _____.[ ]

A. well

B. interesting

C. boring

D. difficult

5. Alice _____ every day. [ ]

A. eat apples

B. watches TV

C. plays computer games

D. plays sports

单项选择题

游泳中发生腿部痉挛是十分危险的情况。调查发现，春季在游泳馆游泳的人中发生腿部痉挛的人数是在户外开放性水域游泳的人中发生腿部痉挛人数的2倍。因此，春季人们在户外开放性水域游泳时更不容易因为腿部痉挛而发生危险。
为了评价上段陈述，最重要的是要知道( )。

A．平均来讲，在春季以外的三个季节，有多少人在户外开放性水域游泳时发生意外
B．春季在游泳馆游泳的人和在户外开放性水域游泳的人的数量比例
C．夏季在户外开放性水域游泳的人发生意外的数量较上个季节减少的可能性
D．在上个季节里，在户外开放性水域游泳而发生意外的人中有多少在过去也发生过腿部痉挛