A. http://www.cnC.aC.cn B. http://www.gB.com.cn C. http://www.btA.net.cm D. http://www.cernet.edu.cn
A. COPYTOC:\TESTVFP.\ST1FOR性别=.F.OR年龄<20 BCOPYTOC:\TESTVFP\ST1FOR性别=.F.AND年龄<20 COPYTOC:\TESTVFP\ST1FOR性别OR年龄<20 D. COPYTOC:\TESTVFP\ST1FOR性别AND年龄<20
A. 90% B. 96% C. 95% D. 98%B.