若8255A的系统基地址为2F9H,且各端口都是奇地址,则8255A的3个端口和控制寄存器的地址各是多少?端口A地址端口B地址端口C地址控制字地址
查看答案
Dictate the following English sentences.(听录音,写句子;注意:句首字母大写和句末标点)1. (提示:choose to; comprehension)[音频]2.(提示:extra; refuse )[音频]3.(提示:fold; envelope;注意在主句主语Mary前使用”,“逗号)[音频]4.(提示:make; the Students' Union)[音频]5.(提示:minor; fix)[音频]6.(提示:post; corner;此处需听写2个句子。)[音频]7.(提示:primary; compulsory)[音频]
After reading the text, please write "√" for true or "×" for false before each statement.(请在空格内填入√或×)
A. 对
B. 错
2. ____The old lady had two daughters: Myra, the one she was proud of, and Enid, the one she loved.
A. 对
B. 错
3. ___In the past two years, Myra seldom came to see her mother, but she wrote to her quite often.
A. 对
B. 错