【简答题】利用标准 CRC 方法传输位流 10011101 ,生成多项式为 x 3 +1 ,请给出实际被传输的位串。假设在传输过程中左边第三位变反了,请证明这个错误可以在接收端被检测出来。
【单选题】The National Research Council, initiated during World War I, was continued after the war for the encouragement of research in the natural sciences.
【单选题】设二维随机变量( X , Y )的联合分布律为 ,则
【单选题】一个四色环电阻器,其色环颜色依次为棕、黑、棕、金,则其标称阻值和允许误差分别为( )。
【简答题】阅读短文,选择正确答案。 Dear Tom, How are you? We go to school five days a week. I have many friends in my school. And one of them is from Canada. His name is Mike. I am learning English. And I learn to speak En...
【单选题】[单选题]企业的标准化工作包括()标准化两方面