下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写——SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写——SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写( )SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
下列语句为列出rID为’00001’和rID为’00002’的reviewer所评分过的不同电影ID,空白处应该填写( )SELECT mID FROM Rating WHERE rID = ‘00001’____SELECT mID FROM Rating WHERE rID = ‘00002’ A: EXCEPT B: UNION C: INTERSECT D: DIVID
设随机变量X的方差存在,Var(X)>0,则以下结论正确的是 A: Var(X) > Var(1-X) B: Var(X) < Var(1-X) C: Var(X) = Var(1-X) D: Var(X) + Var(1-X) = 1
设随机变量X的方差存在,Var(X)>0,则以下结论正确的是 A: Var(X) > Var(1-X) B: Var(X) < Var(1-X) C: Var(X) = Var(1-X) D: Var(X) + Var(1-X) = 1
main() { int var, *p; var=100; *p=&var; var=*p+10; printf("%d",var); }运行结果:
main() { int var, *p; var=100; *p=&var; var=*p+10; printf("%d",var); }运行结果:
根据下面的定义,F0(3+4)的输出结果是_______(注意没有空格)#defineF1(var)printf("var=%d",var)#defineF0(var)F1(var*var)
根据下面的定义,F0(3+4)的输出结果是_______(注意没有空格)#defineF1(var)printf("var=%d",var)#defineF0(var)F1(var*var)
设Varξ=Varη=Var(ξ-2η)=1, 则COV(ξ,η)=______
设Varξ=Varη=Var(ξ-2η)=1, 则COV(ξ,η)=______
以下打印的结果是? <?php $var='a';$VAR='b';echo"$var$VAR"; A: aa B: C: a
以下打印的结果是? <?php $var='a';$VAR='b';echo"$var$VAR"; A: aa B: C: a
与以下JavaScript代码var hello等价的代码是( )。 A: var HEllo B: var Hello C: var hello D: var HELLO
与以下JavaScript代码var hello等价的代码是( )。 A: var HEllo B: var Hello C: var hello D: var HELLO
Date对象问题4:Date对象正确获取年份的方法是: A: var now = new Date();var year = now.Year(); B: var now = new Date();var year = now.getYear(); C: var now = new Date();var year = now.getFullYear(); D: var now = new Date();var year = now.getNowYear();
Date对象问题4:Date对象正确获取年份的方法是: A: var now = new Date();var year = now.Year(); B: var now = new Date();var year = now.getYear(); C: var now = new Date();var year = now.getFullYear(); D: var now = new Date();var year = now.getNowYear();
var a=10 var a=100 console.log(a)
var a=10 var a=100 console.log(a)