体悟到大自然法则的人是什么展现？

阅读理解。

     Tony and Linda are in the dining hall at Beijing International School. There are fifty tables in it. There are

also some pictures about food and drinks on the wall. In the pictures, we can see juice, tea, pork, beef and

chicken. We can see some vegetables, too. They tell us what healthy food is and what healthy drinks are.

     Tony and Linda come from America. They both like Chinese food and drinks. Tony likes eating noodles

① _______Linda ②________eating noodles because she can't use(使用)chopsticks(筷子). Tony doesn't

eat pork. He thinks it is unhealthy food. They like eating dumplings(饺子)very much.

1. How many tables are there in the dining hall?

__________________________________________________

2. What's Tony and Linda's favourite Chinese food?

___________________________________________________

3. There are _____ in the dining hall.

A. some tables and some students

B. some tables and some teachers

C. some tables and some pictures

D. some students and some teachers

4. 选择适当的词填在①处:

A. and          

B. but          

C. in                

D. so

5. 在②处的空白处用not like的适当形式填空:

_______________________________________

数据库表的参照完整性规则包括更新规则、删除规则和插入规则。其中插入规则可以设置为 ______。

A．级联、限制或忽略

B．级联或忽略

C．级联或限制

D．限制或忽略

属于酌量性固定成本的有( )。

A．机器设备折旧费

B．长期租赁费

C．广告费

D．职工最低工资

我国已将（）采煤机作为今后的发展方向。

A、机械牵引

B、液压牵引

C、电牵引

D、链牵引

Excel 97的单元格中，存放的数据可以有（）两类。

A.常量和公式

B.常量和变量

C.数字和字母

D.常量和函数