在土地有限情况下城市垃圾处理采用焚烧法而不用填埋法是因为焚烧（）。 A.建厂投资少

短文阅读。 

     Today is Sunday. It's Jack's birthday. Jack is thirteen years old. Jack's friends will come to his house

and they will have a party tonight. Jack will have a cake and candles and birthday presents. Jack is very

happy.

1. Is today Saturday?

    ____________________.

2. How old is Jack?

    ____________________.

3. What will Jack's friends have tonight?

    ______________________________.

4. What will Jack have?

    ______________________________.

5. Is Jack happy?

    ______________________________.

在窗体上画一个文本框(名称为Text1)和一个标签(名称为Label1)，程序运行后，在文本框中每输入一个字符，都会立即在标签中显示文本框中字符的个数。以下可以实现上述操作的事件过程是( )。

A) Private Sub Text1_Change( )
Label1. Caption = Str( Len( Text1. Text) )
End Sub
B) Private Sub Text1_Click( )
Label1. Caption = Str( Len( Text1. Text) )
End Sub
C) Private Sub Text1_Change( )
Label1. Caption = Text1. Text
End Sub
D) Private Sub Label1_Change( )
Label1. Caption = Str( Len( Text1. Text) )
End Sub

阴阳的相互转化是

A．绝对的

B．有条件的

C．必然的

D．偶然的

E．量变

川贝母与浙贝母均具有的功效是（）

A.清肺养阴止咳

B.温肺化痰止咳

C.泻肺化痰止咳

D.燥湿化痰止咳

E.清热化痰止咳

由相交形成体组成的构件叫（）构件。

A.三通

B.螺旋

C.相交

D.回转体