以下关于系统模块的描述中,不正确的是()
A.模块是相对独立的
B.模块是处理功能
C.模块是不可分解的
D.模块是可被调用的
参考答案:C
As early as 1647 Ohio made a decision that free, tax supported schools must be established in every town _____ 50 households or more.
A.having
B.to have
C.to have had
D.having had
宽带ISDN协议分为3面和3层。其中3个面为用户面、控制面和______。
A.物理面
B.ATM面
C.ATM适配面
D.管理面