正常宫缩持续时间最长可达
A．30秒B．40秒C．50秒D．1分钟E．2分钟
参考答案：D
根据短文内容，回答问题。
Hello! My name is Alice. There are seven people in my family. My grandfather and grandmother are in
America. My parents are English teachers in China. I have two brothers. They are twins. We are students
in the same school. I am in Grade One. They are in Grade Three.
1. Who is Alice?
______________________________________________________
2. How many people are there in her family?
3. Who are they?
4. How many children are there in her family?
5. Are her parents doctors or teachers?
回收站的作用是：
A．存放硬盘或桌面上删除的文件B．存放软盘上删除的文件C．存放光盘上删除的文件D．存放计算机内存中删除的文件E．以上都不对
