-- We have few vegetables for dinner. Could you go and buy ?
-- Yes, sure. But I don't have money.
A:any; any
B:some; any
C:any; some
D:some; some
爸爸年龄的45相当于妈妈的年龄,这里是把____看作单位“1”。(填“爸爸年龄”或“妈妈年龄”)
1+2+3+4+5+…+99.