题型:名词解释 Distinguished guests and friends, welcome to our school. the ceremony of the 50th Anniversary this morning are our alumni(校友) from home and abroad.A.AttendB.To attendC.AttendingD.Having attended 查看答案
题型:名词解释 甲施工企业承建的办公楼项目已经交付使用,发包人仍拖欠部分工程款未予支付。甲在未与任何人协商的情况下,擅自将办公楼部分空余写字间卖给丙公司,则该买卖合同( )。A.可撤销B.有效C.可变更D.无效 查看答案