《本草经集注》的作者是
A.陶弘景 B.赵学敏 C.李时珍 D.唐慎微 E.苏敬
参考答案:A
Was it ________ the conference of APEC that made Shanghai the focus of the world then?
A.holding
B.to hold
C.held
D.having held
8086/8088与外设进行数据交换时,经常会在( )后进入等待周期。
A.T1 B.T2 C.T3 D.T4