比7的8倍多13的数是多少？
7×8+13
=56+13
=69．
答：比7的8倍多13的数是69．
Her daughter enjoys _____ the piano very much.[ ]
A. play
B. to play
C. playing
D. played
居民客户移表时供电点改变的要（）办理手续。
A.按新装用电
B.按赔表处理
C.按收取材料费处理
D.按延伸服务处理
