第5题: [单项选择]已知:DAT1LABELBYTEDAT2DW0ABCDH依次执行SHLDAT1,1和SHRDAT2,1指令后,DAT2字存储单元中的内容是: A. AF34H B. 55CDH C. 55E6H D. ABCDH 参考答案:B 答案解析:ABCDH的二进制表示为1010101111001101,执行SHLDAT1,1得到1010101110011010,执行算术右移1位以后得到0101,0101,1100,1101,即十六进制的55C
第24题:[判断题]在线计费又称为预付费业务,即用户预先在账户中设置一定的资金并根据账户余额来使用数据业务的计费方式。
The online charging is called the prepaid service. That is, the users set certain balances in their accounts in advance and use the data services according to the balances in their accounts. A.正确 B.错误 参考答案:A