• 2022-05-31 问题

    命令“reg y i.id#c.x2 x3 i.id#c.x4 ... xk i.id, r ”与命令“xtreg y i.id#c.x2 x3 i.id#c.x4 ... xk, fe vce(cluster id) ”是等价的,其中,id是个体变量名。

    命令“reg y i.id#c.x2 x3 i.id#c.x4 ... xk i.id, r ”与命令“xtreg y i.id#c.x2 x3 i.id#c.x4 ... xk, fe vce(cluster id) ”是等价的,其中,id是个体变量名。

  • 2022-06-05 问题

    下面属于弱拍开始的音乐节奏有 A: 2/4 X X I X X I B: 3/4 0 0 X I X X X I C: 4/4 0 X I X X X X I D: 3/4 X X X I 0 X 0 I

    下面属于弱拍开始的音乐节奏有 A: 2/4 X X I X X I B: 3/4 0 0 X I X X X I C: 4/4 0 X I X X X X I D: 3/4 X X X I 0 X 0 I

  • 2022-06-12 问题

    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

  • 2022-06-16 问题

    以下程序的输出结果是(). A: x=3.600000,i=4 B: x=3,i=3 C: x=3.600000,i=3 D: x=3 i=3.600000

    以下程序的输出结果是(). A: x=3.600000,i=4 B: x=3,i=3 C: x=3.600000,i=3 D: x=3 i=3.600000

  • 2022-10-26 问题

    下列关于串行化说法有误的是( )。 A: I=4 x=5 B: I=7 x=15 C: I=6 x=8 D: I=7 x=11

    下列关于串行化说法有误的是( )。 A: I=4 x=5 B: I=7 x=15 C: I=6 x=8 D: I=7 x=11

  • 2021-04-14 问题

    定义如下变量和数组: int i; int x[4][4]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}; 则下面语句的输出结果是______。 for(i=0;i<4;i++) printf("%3d",x[i][3-i]);

    定义如下变量和数组: int i; int x[4][4]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}; 则下面语句的输出结果是______。 for(i=0;i<4;i++) printf("%3d",x[i][3-i]);

  • 2022-05-30 问题

    x=3y=3print(id(x)==id(y)) A: true B: false

    x=3y=3print(id(x)==id(y)) A: true B: false

  • 2022-06-06 问题

    x=-7,y=-7,id(x)==id(y)结果是False

    x=-7,y=-7,id(x)==id(y)结果是False

  • 2022-05-27 问题

    for(i=1;i<;=4;i++) { X=i*i; If(x==9) ________ Cout<; A: break B: continue C: break and continue D: 什么都不用写

    for(i=1;i<;=4;i++) { X=i*i; If(x==9) ________ Cout<; A: break B: continue C: break and continue D: 什么都不用写

  • 2022-07-02 问题

    删除表teacher(id,name,gender,birthday,score)中id为4的老师( ) A: delete from teacher; B: delete from teacher where id = 4; C: delete teacher where id = 4; D: drop from teacher where id = 4;

    删除表teacher(id,name,gender,birthday,score)中id为4的老师( ) A: delete from teacher; B: delete from teacher where id = 4; C: delete teacher where id = 4; D: drop from teacher where id = 4;

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