8086CPU中断请求线有()。
A.1条
B.2条
C.4条
D.8条
参考答案:B
解析:8086CPU中断请求线有INTR和NMI两条。它们都是外部中断申请输入端。
I went to visit him, I found, _______, that he wasn't at home. [ ]
A. however
B. but
C. and
D. so
有限责任公司的股东最多可有( )人。
A.30
B.40
C.50
D.60