004013 f7 such addresses to use Ctrl + F9
7 c8114ab such addresses to use ALT + F9

1, return the shortcut?

2, 7 C8114AB such address is the DLL system? Not the program address?

3, Ctrl + N to open the import table (input), the import table are all using API function list current program?

4, what is the difference between the import table and IAT table, please use simple words to describe?

5, why return values must be stored in eax, programmers can be changed in other register?