8086/8088 CPU的外部总线均采用传送方式。即在一个总线周期内,首先利用总线传送,然后再利用同一总线传送。
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80X86支持两种类型的中断:及,对应的两个中断请求引脚信号及。
The system is based _______ a network of metal pipes.
A. in
B. on
C. under
D. above
Air pumps are involved, but their role is limited _______ reducing resistance _______ the capsules' movement in the pipes.
A. to...to...
B. for...for
C. with...with
D. with...for