第1题: [单项选择]The teachers want to (do away with) cheating in their school. A. do credit to B. retain C. put an end to D. substitute for 参考答案:C 答案解析:put aJl end to“使…结束,停止,消灭”。do away with“废除,消灭”;do credit to“为…增光”;retain“保持,保留”;substitute for“代替”。本
第2题: [单项选择]下面哪个协议是A接口网络层协议() A. BSSAP B. SCCP C. MTP1 D. MTP2 参考答案:B