问题 单项选择题

单击一次命令按钮后,下列程序的执行结果为( )。  Private Sub Command1_Click()    Dim m As Integer,I As Integer,x(10) As Integer    For I=0 To 4:x(I)=I+1:Next I    For I=1 TO 2:Call Prioc(x):Next I    For I=0 TO 3:Print x(I);:Next I  End Sub   Private Sub Prioc(a()As Integer)    Static I As Integer    Do     a(I)=a(I)+a(I+1)     I=I+1   Loop While I<2  End Sub

A.private

B.无修饰符

C.public

D.protected

答案

参考答案:B

解析:传递查询的定义。传递查询和联合查询、数据定义查询和子查询,都包含于SQL查询中。

选择题
阅读理解

阅读理解。

     Plants are very important. This is because plants can make food from air, water and sunlight. Animals

and man can not make food from air, water and sunlight. Animals can get their food by eating plants and

animals. Man gets his food by eating plants and animals, too. So animals and man need plants in order to

live. This is why there are so many plants around us.

     There are two kinds of plants: flowering plants and non-flowering plants. You can know some trees

from their flowers and fruits. Non-flowing plants do not grow flowers. You can not see many non-flowering

plants around you.

     If you look carefully at the plants around us, you will find that there are many kinds of plants. Some

plants are large and some are small. Most of them are green. Thanks to (多亏了) the plants around us we

can live on the earth.

1. Which of the following is the most important to man according to the passage?

A. Fruits.

B. Plants.

C. Animals.

D. Flowers.

2. We need many plants around us because _______.

A. plants can grow easily

B. plants are green

C. we can get what we need from plants

D. we like all kinds of-plants

3. There are much _______ non-flowering plants than flowering plants around us.

A. fewer

B. more

C. larger

D. better

4. Which of the following is TRUE?

A. People can make food from air,water and sunlight.

B. Animals get their food only from eating smaller animals.

C. We know all trees from their flowers.

D. Most of plants are green.

5. The best title for this passage is _______.

A. Food from Plants

B. Plants and Man

C. Man and Animals

D. Plants around Us