在串行通信中,有数据传送方向()、()、()三种方式。
参考答案:单工;半双工;全双工
情景选择。
1. 当他人向你表示感谢时,你应该说:____________[ ]
A. No, thanks for me.
B. You are welcome.
C. Don't say that.
2. 当你想说我最喜欢的季节是春天时,应说:____________[ ]
A. My favourite season is spring.
B. I don't like spring.
C. What's your favourite season?
3. 你问Jenny你会弹钢琴吗?应问:____________[ ]
A. Can you play the piano?
B. Can you play the violin?
C. Can you play the guitar?
4. 当你建议你的朋友说让我们包饺子吧,应说:____________[ ]
B. Can you make dumplings?
C. Let's make dumplings.
5. 你想问你喜欢春节吗?应问:____________[ ]
A. Do you like the Spring Festival?
B. I like the Spring Festival.
C. Would you like Spring Festival?
检验医学伦理学理论正确性的唯一标准是
A.理论全面
B.理论系统
C.理论深刻
D.医学实践
E.医学科研