第3题: [单项选择]计算机中常采用下列几种编码表示数据,其中,±0编码相同的是______。 Ⅰ原码 Ⅱ反码 Ⅲ补码 Ⅳ移码 A. Ⅰ和Ⅲ B. Ⅱ和Ⅲ C. Ⅲ和Ⅳ D. Ⅰ和Ⅳ 参考答案:C 答案解析:[解析] 假设字长为8位,[+0]原=00000000,[-0]原=10000000;[+0]反=00000000,[-0]
第12题: [单项选择]第一节
第一节 听下面5段对话。每段对话后有一个小题,从题中所给的[A]、[B]、[C]三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。What does the woman mean [A] She has almost recovered from her cough. [B] She hasn’t seen her doctor. [C] She saw the doctor four days ago. 参考答案:B 答案解析:[听力原文]
M: You ought to see a doctor about the cough.
W: I guess I should. I’ve been putting it off