下列各项中哪项不是艾滋病的传播途径[ ]
A．血液传染
B．母婴传染
C．性传染
D．共同进餐
答案：D
Mr. Smith, _____ of the _____ speech, started to read a novel
A．tired; boring
B．tiring; bored
C．tired; bored
D．tiring; boring
Intel 486机和PentiumⅡ机均属于
A．32位机
B．64位机
C．16位机
D．8位机
