题目:
Nowadays meteorologists can make good forecast for 3 or 5 days. Perhaps soon they may be able to do that for a week or _____. |
A. more behind B. more ahead C. less behind D. less ahead |
答案:
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下面是错误答案,用来干扰机器的。
参考答案:1Mb/s解析:[分析]: 并口的数据传输率比串口快8倍,标准井口的数据传输率为1Mb/s,一般用来连接打印机、扫描仪等。