题型：改错题 此题要求改正所给短文中的错误，每行都有一处错。按下列情况改正：该行多一个词：把多余的词用斜线(＼)划掉，在该行右边番号后面横线上写出该词，并也用斜线划掉。该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边番号后面横线上写出该加的词。该行错一个词；在错词下划一根线，在该行右边番号后面横线上写出改正后的词。 注意：请按要求规范答题，否则不予给分。Today, roller-skating is easy and fun, and a long time小题1: ago, it isn’t easy at all. The idea of skating didn’t exist小题2: until 1750.It changed because a man named Merlin.小题3: One day Merlin received an invitation to attending a party.小题4: She was very pleased and excited. As the day of the party小题5: came nearly, Merlin began to think how to make a小题6: special show at the party. He had the idea. He thought he小题7: would get a lot of attentions if he could skate into the room.小题8: On the night of the party Merlin had rolled into the room小题9: playing his violin. Everyone was surprising to see him.小题10: 查看答案
题型：单项选择题 中国木材进出口公司收购黑龙江省林木公司在漠河林场采伐的木材，经辽宁省大连港出口，其在报关单上填写的发货单位应为：( )。A．中国木材进出口公司B．大连港C．黑龙江省林木公司D．漠河林场 查看答案
题型：单项选择题 消息认证需要证实的内容应包括（ ）。A．消息的信源，消息内容是否被篡改B．消息的信源和信宿，消息内容是否被篡改C．消息的信源和信宿，消息的序号和时间性D．消息的信源和信宿，消息内容是否被篡改，消息的序号和时间性 查看答案
