网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
C4植物多集中在单子叶植物的()中,其约占C4植物总数的75%。
- A、莎草科
- B、禾本科
- C、十字花科
- D、菊科
参考答案
更多 “C4植物多集中在单子叶植物的()中,其约占C4植物总数的75%。A、莎草科B、禾本科C、十字花科D、菊科” 相关考题
考题
下列过程定义语句中,参数不是对象的定义语句是( )。A.Sub Pro4(x As Form)B.Sub Pro4(y As Control)C.Sub Pro4(Form1 As Form,Labell As Control)D.Sub Pro4(x As Currency)
考题
在通用声明中定义a,在窗体中添加一个命令按钮Command1,编写如下程序代码:DimaAsIntegerSubtest()a=a+1:b=b+1:c=c+1PrintSub:;a;,;b;,;cEndSubPrivateSubCommand1_Click()a=2:b=3:c=4CalltestCalltestEndSub程序运行后,单击命令按钮,窗体中将显示( )A.Sub:3,4,5Sub:4,5,6B.Sub:2,3,4Sub:2,3,4C.Sub:3,1,1Sub:4,1,1D.Sub:1,1,1Sub:1,1,1
考题
下列关于Sub过程的叙述正确的是A.一个Sub过程必须有一个Exie Sub语句B.一个Sub过程必须有一个Enb Sub语句C.在Sub过程中可以定义一个Function过程D.可以用Goto语句退出Sub过程
考题
(12)有下列Sub过程: Sub Sub(x As Single,y As Single) t=x x=t/y y=t Mody End Sub 在窗体上的命令按钮Commandl中,编写下列事件过程,执行该事件过程调用Sun过程,结果是( )。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5 b=4 Sun a,b Print a;b End Sub A.1.25 1 B.5 4 C.4 5 D.1 1.25
考题
运行以下程序后,输出结果为_____________。 Private Sub Command1_Click() a=1:b=2:c=3 Call test(a,b+3,(c)) Print "main:";a;b;c End Sub Private Function test(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub:";p;m;n End Function:A. sub:2 6 4 main:1 2 3B. sub:2 6 4 main:2 2 3C. sub:2 6 4 main:2 6 4D. sub:2 6 4 main:1 6 4
考题
在窗体中添加一个命令按钮,编写如下程序: Private Sub Subl(p,m,n) p=p+1:m=m+1:n=n+1 Print"subl:";p;m;n End Sub Private Sub Command1_Click() al=1:b=2:c1=3 Call Subl(a,b1+3,c1) Print"Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub:2 6 4 Main:2 6 4B.Sub:2 6 4 Main:2 6 4C.Sub:2 6 4 Main:1 2 3D.Sub:2 6 4 Main:2 2 3
考题
有如下程序: Private Sub Command1_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1(a,b) End Sub Sub Sub1(x As Single,y As Single) t=X X=t\Y Y=t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B. 1 1C.2 2D.1 2
考题
有如下一个Sub过程: Sub mlt(ParamArray numbers()) n=1 For Each x In numbers n=n*x Next x Print n End Sub 在一个事件过程中如下调用该Sub过程: Private Sub Command1_Click() Dim a As Integer Dim b As Integer Dim c As Integer Dim d As Integer a=1 b=2 c=3 d=4 mlt a,b,c,d End Sub 该程序的运行结果为( )。A.12B.24C.36D.48
考题
下列Sub 过程中描述错误的是______。A.Sub 过程只能在窗体模块中定义B.Goto 语句不能用于Sub 过程C.Sub 过程只能在窗体模块中定义D.Sub 过程中不能嵌套定义Sub 过程
考题
假定有如下的Sub过程:Sub Sub1(x As Single,y As single)t=xx=t/yy=t Mod yEnd Sub在窗体上画一个命令按钮,然后编写如下事件过程:Private Sub Command1_click()Dim a As SingleDim b As Singlea=5b=4Sub1 a,bPrint a;bEnd Sub程序运行后,单击命令按钮,输出结果为A.B.C.D.
考题
写出程序运行的结果Public class BasePublic virtual string Hello() {return “Base”;}Public class Sub:BasePublic override string Hello() {return “Sub”;}1. Base b = new Base(); b.Hello;2. Sub s = new Sub(); s.Hello;3. Base b = new Sub (); b.Hello;4. Sub s = new Base(); s.Hello;
考题
有如下程序。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1 ( a,B)End Sub Sub Subl(x As Single, y As Single) t=x x=t\y y = t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2D.1 2
考题
在窗体中添加一个命令按钮,编写如下程序: Private Sub Test(p,m,n) p=p+1:m=m+1:n=n+1 Print "Sub: ";p;m;n End Sub Private Sub Command1.Click() a1=1:b=2:c1=3 Call Test((a,b1+3,(c1)) Print "Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3
考题
有如下一个Sub过程: Sub mlt (ParamArray numbers()) n=1 For Each x In numbers n=n * x Next x Print n End Sub在一个事件过程中如下调用该Sub过程: Private Sub Coinmand1_Click() Dim a As Integer Dim b As Integer Dim c As Integer Dim d As Integer a=1 b=2 c=3 d=4 mlt a,b,c,d End Sub 则运行该程序,结果为______。A.12B.24C.36D.48
考题
在窗体中添加一个命令按钮,编写如下程序:Private Sub Sub1(p,m,n)p=p+1:m=m+1:n=n+1Print "sub1:";p;m;nEnd SubPrivate Sub Command1_Click()a1=1:b=2:c1=3Call Sub1(a,b1+3,c1)Print"Main:";a1;b1;c1End Sub程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3
考题
窗体上有文本框Text1和一个菜单,菜单标题、名称如表,结构见图。要求程序执行时单击“保存”菜单项,则把其标题显示在Text1文本框中。下面可实现此功能的事件过程是。A.Private Sub save_Click B.Private Sub save_Click Textl.Text=file.save.Caption Textl.Text=save.Caption End Sub End Sub C.Private Sub file_Click D.Private Sub file_Click Textl.Text=file.save.Caption Textl.Text=save.Caption End Sub End Sub
考题
在窗体中添加一个命令按钮,编写如下程序: Private Sub Sub1(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub1:";p;m;n End Sub Private Sub Command1_Click() a1=1:b=2:c1=3 Call Sub1(a,b1+3,c1) Print"Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3
考题
class super { public int getLength() {return 4;} } public class Sub extends Super { public long getLength() {return 5;} public static void main (String[]args) { super sooper = new Super (); Sub sub = new Sub(); System.out.printIn( sooper.getLength()+ “,” + sub.getLength() }; } What is the output?() A、 4, 4B、 4, 5C、 5, 4D、 5, 5E、 The code will not compile.
考题
class Super { public int getLenght() { return 4; } } public class Sub extends Super { public long getLenght() { return 5; } public static void main(String[] args) {Super sooper = new Super(); Sub sub = new Sub(); System.out.println( sooper.getLenght() + “,” + sub.getLenght() ); } } What is the output? ()A、 4,4B、 4,5C、 5,4D、 5,5E、 Compilation fails.
考题
单选题煤矿井下的有害气体主要是由()、CO2、H2S、NO2、H2、NH3气体组成。A
COB
pCHsub4/sub、SOsub2/sub/pC
pSOsub2/sub、CO/pD
pCO、CHsub4/sub、SOsub2/sub/p
考题
单选题class super { public int getLength() {return 4;} } public class Sub extends Super { public long getLength() {return 5;} public static void main (String[]args) { super sooper = new Super (); Sub sub = new Sub(); System.out.printIn( sooper.getLength()+ “,” + sub.getLength() }; } What is the output?()A
4, 4B
4, 5C
5, 4D
5, 5E
The code will not compile.
考题
单选题A
pIsub2/sub=Isub3/sub/pB
pIsub2/sub=4Isub3/sub/pC
pIsub2/sub=2Isub3/sub/pD
pIsub3/sub=4Isub2/sub/p
考题
单选题C4植物多集中在单子叶植物的()中,其约占C4植物总数的75%。A
莎草科B
禾本科C
十字花科D
菊科
热门标签
最新试卷