MCS-51单片机的地址总线由()构成。
参考答案:由P0分时输出低8位地址和P2输出高8位地址
— I'm too busy to go to the cinema with you, Mike.
—__ ____.The film is said to be a very good one.[ ]
A. That's all right
B. I'm so sorry
C. What a shame
D. It doesn't matter
铺麻醉床正确的是()
A.盖被扇形三折于背门一侧
B.枕头横立于床头,开口背门
C.麻醉护理盘放于床旁桌上
D.输液架放于床尾
E.椅子移回原处