On a（）memory system，the logical memory space available to the program is totally independent of the physical memory space.

A programmer must know about a function’s（）to call it c...

单项选择题A programmer must know about a function’s（）to call it correctly.

One solution to major security problem is（），which are f...

单项选择题One solution to major security problem is（），which are frequently installed to fix known security holes.

（）is a clickable string or graphic that points to anoth...

单项选择题（）is a clickable string or graphic that points to another Web page or document.