来自付立政的问题
quantity与amount的区别The__ofthetimethestudentsspendatschoolhasbeenlimitedtonomorethansixhoursadayforprimarystudents.AnumberBsumCquantityDamount为什么选D不选C呢
quantity与amount的区别
The__ofthetimethestudentsspendatschoolhasbeenlimitedtonomorethansixhoursadayforprimarystudents.
AnumberBsumCquantityDamount为什么选D不选C呢

