第20题: [单项选择]李某,系医院供应室消毒员,该医院使用的灭菌容器为下排气式压力蒸汽灭菌器,她在操作时应注的是 准备灭菌的物品包,体积不得超过 A. 30cm×30cm×25cm B. 25cm×25cm×25cm C. 30cm×30cm×30cm D. 30cm×30cm×50cm E. 30cm×30cm×45cm 参考答案:A
第25题: [简答题]The reason why a country like Britain does not buy snow-pl~ughs is that they are only used for a few days in any one year, and the money could be more useful in other things such as hospitals, education, helping the old, and so on.
第37题: [单项选择]下面IP地址属于B类IP地址的是______。 A. 61.128.0.1 B. 172.168.9.2 C. 9.02.199.5.2 D. 127.0.0.1 参考答案:B 答案解析:[解析] IP地址采用分段地址方式,长度为4个字节,即32位。每个字节对应一个十进制数,其取值范围是0~255。A类地址范围是1~127;B类地址范围是128~191;C类地址范围是192~223。