某数值编码为FFH，若它所表示的真值为-127，则它是用（）表示的；若它所表示的真值为-1，则它是用（）表示的。

某数值编码为FFH，若它所表示的真值为-127，则它是用（）表示的。

On a（）memory system，the logical memory space available ...

单项选择题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.