第18题: [单项选择]A Ways to determine the age of a fossil
B The identity of a fossil the woman found
C A comparison of two shellfish fossils
D Plans for a field trip to look for fossils 参考答案:B 答案解析:[听力原文]31-35
W: Dr Manning, do you have a few minuets. I’d like to ask you about this fossil I found
第31题: [简答题]设已知人事档案数据库文件RSDA.DBF,其库结构为:姓名(C,8),性别(C,2),出生日期(D,8),职称(C,6),工资(N,6,2)奖金(N,6,2),党员(L,1)。该数据库已在当前工作区中打开,根据要求写出相应的命令。统计工资大于1000的记录个数并存入内存变量AA中。 参考答案:Count for 工资>1000 to AA
或Uont ALL for 工资>1000 to AA