哪一种操作系统是现在几乎所有的IBM兼容机都使用的操作系统？Which operating system is now used by almost all IBM compatible computers?a. DOSb. Microsoft Windowsc. Linuxd. Macintosh OS
哪一种操作系统是现在几乎所有的IBM兼容机都使用的操作系统？Which operating system is now used by almost all IBM compatible computers?a. DOSb. Microsoft Windowsc. Linuxd. Macintosh OS
A.a
B.b
C.c
D.d
正确答案：b
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