I _____ he _____ tomorrow.    [ ]

A. don't think; will come    

B. think; won't come   

C. not think; will come    

D. think, don't come

下列属于PC机的并行接口工作模式的是 (23) 。

A．SPP、DMA、EPP

B．SPP、USB、ECP

C．SPP、EPP、ECP

D．PIO、USB、SPP