标签：studentsinc - 澳大利亚华人论坛

The number of studentsincreased by 20%during 1988 but then,during 1989 thenumbers decreasedby 20% to 384.the number ofstudentsat thestart of 1988 must have been. ... 评论 400 评论 384/0.8/1.2=400 评论 聪明，人材 评论 孩子小学几...澳洲华人论坛