Public Sub Proc(a%( )) Static i% Do a(i) = a(i) + a(i + 1) i = i + 1 Loop While i < 2 End Sub Private Sub Command1_Click( ) Dim m%, i%, x%(10) For i = 0 To 4: x(i) = i + 1: Next i For i = 1 To 2: Call Proc(x): Next i For i = 0 To 4: Print x(i);: Next i End Sub A: 3 4 7 5 6 B: 3 5 7 4 5 C: 2 3 4 4 5 D: 4 5 6 7 8
Public Sub Proc(a%( )) Static i% Do a(i) = a(i) + a(i + 1) i = i + 1 Loop While i < 2 End Sub Private Sub Command1_Click( ) Dim m%, i%, x%(10) For i = 0 To 4: x(i) = i + 1: Next i For i = 1 To 2: Call Proc(x): Next i For i = 0 To 4: Print x(i);: Next i End Sub A: 3 4 7 5 6 B: 3 5 7 4 5 C: 2 3 4 4 5 D: 4 5 6 7 8
4 、反应 2N 2 O 5 4NO 2 + O 2 , v (N 2 O 5 ) 、 v (NO 2 ) 、 v (O 2 ) 之间关系正确的是 .. (A) v (N 2 O 5 ) / 2 = v (NO 2 ) / 4 = v (O 2 ) ; (B) v (N 2 O 5 ) = v (NO 2 ) = v (O 2 ) ; (C) 2 v (N 2 O 5 ) = 4 v (NO 2 ) = v (O 2 ) ; (D) 2 v (N 2 O 5 ) = 4 v (NO 2 ) + v (O 2 ) 。/js/editor20131024/themes/default/images/spacer.gif
4 、反应 2N 2 O 5 4NO 2 + O 2 , v (N 2 O 5 ) 、 v (NO 2 ) 、 v (O 2 ) 之间关系正确的是 .. (A) v (N 2 O 5 ) / 2 = v (NO 2 ) / 4 = v (O 2 ) ; (B) v (N 2 O 5 ) = v (NO 2 ) = v (O 2 ) ; (C) 2 v (N 2 O 5 ) = 4 v (NO 2 ) = v (O 2 ) ; (D) 2 v (N 2 O 5 ) = 4 v (NO 2 ) + v (O 2 ) 。/js/editor20131024/themes/default/images/spacer.gif
产生并输出如下形式的方阵。 1 2 2 2 2 2 1 3 1 2 2 2 1 4 3 3 1 2 1 4 4 3 3 3 1 4 4 4 3 3 1 5 1 4 4 3 1 5 5 5 1 4 1 5 5 5 5 5 1 #include "stdio.h" int main() { int a[7][7],i,j; for(i=0;i<7;i++) for(j=0;j<7;j++) if( (1) || i+j==6) a[i][j]=1; else if ( (2) &&i+j<6) a[i][j]=2; else if (i>j&&i+j<6) a[i][j]=3; else if (i i==j ; j==i ii i+j>6; j+i>6; 6
产生并输出如下形式的方阵。 1 2 2 2 2 2 1 3 1 2 2 2 1 4 3 3 1 2 1 4 4 3 3 3 1 4 4 4 3 3 1 5 1 4 4 3 1 5 5 5 1 4 1 5 5 5 5 5 1 #include "stdio.h" int main() { int a[7][7],i,j; for(i=0;i<7;i++) for(j=0;j<7;j++) if( (1) || i+j==6) a[i][j]=1; else if ( (2) &&i+j<6) a[i][j]=2; else if (i>j&&i+j<6) a[i][j]=3; else if (i i==j ; j==i ii i+j>6; j+i>6; 6
设随机变量X~B(n,p),且EX=4,n=5,则P=() A: 2/5 B: 4/5 C: 5/4 D: 5/16
设随机变量X~B(n,p),且EX=4,n=5,则P=() A: 2/5 B: 4/5 C: 5/4 D: 5/16
【单选题】A=[3 4 5;4 2 6];B=[4 2 7];C=[A;B] 运行的结果为 A. [3 4 5 4 2 6 4 2 7] B. [3 4 4;4 2 2;5 6 7] C. [3 4 5;4 2 6;4 2 7] D. [4 2 7;3 4 5;4 2 6]
【单选题】A=[3 4 5;4 2 6];B=[4 2 7];C=[A;B] 运行的结果为 A. [3 4 5 4 2 6 4 2 7] B. [3 4 4;4 2 2;5 6 7] C. [3 4 5;4 2 6;4 2 7] D. [4 2 7;3 4 5;4 2 6]
下列哪条语句是正确的( ) A: A=[1 2;3 4];B=[3;7];A.*B; B: A=cell(2,3);A(1,2)=[4;5]; C: A=[2 3 5 7;9 4 6 1;7 3 2 5];B=[1 7;0 5];A(2:end,2:2:end) D: x=-5:5;y=-5:5;z=x.*x-y.*y;surf(x,y,z);
下列哪条语句是正确的( ) A: A=[1 2;3 4];B=[3;7];A.*B; B: A=cell(2,3);A(1,2)=[4;5]; C: A=[2 3 5 7;9 4 6 1;7 3 2 5];B=[1 7;0 5];A(2:end,2:2:end) D: x=-5:5;y=-5:5;z=x.*x-y.*y;surf(x,y,z);
下面代码的输出结果为( ) for i in range(1, 7): if i % 2 == 0: print(i, end=" ") A: 1 2 3 4 5 6 7 B: 1 2 3 4 5 6 C: 2 4 6 7 D: 2 4 6
下面代码的输出结果为( ) for i in range(1, 7): if i % 2 == 0: print(i, end=" ") A: 1 2 3 4 5 6 7 B: 1 2 3 4 5 6 C: 2 4 6 7 D: 2 4 6
下面说法错误的是( )。知识点:列表推导式 A: dict([(x, x**2) for x in range(6)]) 创建的字典是{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25} B: [[x*3+y for y in range(1,4)] for x in range(3)] 创建的是二维列表 [[1, 2, 3], [4, 5, 6], [7, 8, 9]] C: number = [-2, 4, 6, -5]string = 'ab'z = [(i, j) if i>0 else (-i, j) for i in number for j in string]这段代码创建的列表为[(2, 'a'), (2, 'b'), (4, 'a'), (4, 'b'), (6, 'a'), (6, 'b'), (5, 'a'), (5, 'b')] D: ' '.join([i for i in range(1,11)])的运算结果为字符串'1 2 3 4 5 6 7 8 9 10'
下面说法错误的是( )。知识点:列表推导式 A: dict([(x, x**2) for x in range(6)]) 创建的字典是{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25} B: [[x*3+y for y in range(1,4)] for x in range(3)] 创建的是二维列表 [[1, 2, 3], [4, 5, 6], [7, 8, 9]] C: number = [-2, 4, 6, -5]string = 'ab'z = [(i, j) if i>0 else (-i, j) for i in number for j in string]这段代码创建的列表为[(2, 'a'), (2, 'b'), (4, 'a'), (4, 'b'), (6, 'a'), (6, 'b'), (5, 'a'), (5, 'b')] D: ' '.join([i for i in range(1,11)])的运算结果为字符串'1 2 3 4 5 6 7 8 9 10'
以下程序的输出结果是___________。for i in range(1,11): print(i, end = " ") A: 1 2 3 4 5 6 7 8 9 B: 1 2 3 4 5 6 7 8 9 10 C: 1 2 3 4 5 D: 1 3 5 7 9
以下程序的输出结果是___________。for i in range(1,11): print(i, end = " ") A: 1 2 3 4 5 6 7 8 9 B: 1 2 3 4 5 6 7 8 9 10 C: 1 2 3 4 5 D: 1 3 5 7 9
以下程序段运行后的输出结果是()inti;for(i=1;i<=7;i++){if(i%2!=0)continue;printf("%d",i);} A: 2 4 6 B: 1 3 5 C: 1 3 5 7 D: 1 2 3 4 5 6 7
以下程序段运行后的输出结果是()inti;for(i=1;i<=7;i++){if(i%2!=0)continue;printf("%d",i);} A: 2 4 6 B: 1 3 5 C: 1 3 5 7 D: 1 2 3 4 5 6 7