The weight of the container and its contents is supported on deck by what part(s)?（）.

在关系R（R#,RN,S#）和S（S#,SN,SD）中，R的主码是R#,S的主码是S#，则S#在R中称为（）

All client computers on your company network run Windows 7 and are members of a Windows Server 2008 R2 domain. The R&D department staff are local administrators on their computers and are members of the R&D global security group. A new version of a business software application is available on the network. You plan to apply an AppLocker security policy to the R&D group. You need to ensure that members of the R&D group are not allowed to upgrade the software. What should you do?（）

For relation R where primary key contains multiple, no non-key attribute should be functionally dependent on a part of the primary key.This relation R is at least in

For relation R where primary key contains multiple attributes,no non-key attribute should be functionally dependent on a part of the primary key. This relation R is at least in

以下程序的功能是: 给r输入数据后计算半径r圆面积s。程序在编译时出错。 main () /* Beginning */ { int r; float s; scanf ( "%d", &r); s=*π*r*r; printf ("s=%f ", s); 出错的原因是

下列程序的功能是给r输入数据后计算半径为r的圆面积s。程序在编译时出错。 main() /* Beginning */ { int r; float s; seanf("%d",&r); s=*π*r*r; printf("s=%f ",s); } 出错的原因是( )。

以下程序的功能是：给r输入数据后计算半径为r的圆面积s，程序在编译时出错。 main() /* Beginning */ {int r；float s； scanf("%d",&r)； s=*I*r*r； printf("s=%f ",s)； } 出错的原因是 ______。

下列程序的功能是给r输入数据后计算半径为r的圆面积s。程序在编译时出错。 main () /*Beginning*/ { int r； float s； scanf("%d"，& r)； s=*π*r*r ； printf ("s=%f " , s ) ； } 出错的原因是( )。

以下程序的功能是：给r输入数据后计算半径为r的圆面积s。程序在编译时出错。 main() /* Beginning*/ {int r;float s; scanf("%d",&r); s=*π*r*r*r;printf("s= %f ",s); } 出错的原因是 ______。

以下程序的功能是：给r输入数据后计算半径为r的圆面积s。#include ＜stdio, h＞main( )/* Beginning */{ int r; float s; scanf("% d", &r); s = *Π* r*r;printf("s =%f ",s); 程序在编译时出错，出错的原因是( )。

The ratio of r to s is 3 to 4. The ratio of s to t is 2 to 9. What is the ratio of r to t?