选择题：13.(单选题)能由键盘命令调入内存直接执行的磁盘文件的扩展名为_______。(本题3.0分)A.

题目内容：

13.(单选题)能由键盘命令调入内存直接执行的磁盘文件的扩展名为_______。(本题3.0分)
A..ASC或.PRG
B..OBJ或.FOX
C..EXE或.COM
D..LIB或.SYS

参考答案：

My train arrives in New York at eight o’clock toni

My train arrives in New York at eight o’clock tonight. The plane I would like to

If tap water were as dangerous as some people think, ________ would be getting s

4 、我国货币制度规定，人民币应具有以下特点（）。A ．是不可兑现的银行券 B ．是可兑现的银行券 C ．与黄金没有直接联系D ．可以兑换黄金

Both sides agree to _（ _____ ）______ (intense) their efforts toward peaceful __（