抛物线y=ax2+bx-3与x轴交于AB两点，与y轴交于C点，且经过点（2，-3a）

what did your parents do last weekeng是什么意思 in order to 还有一种说法是什么?用在句中的 用 in order to (以便为了）造五句话七年级下的水平 in order to 可不可以引导目的状语从句?可以放在句首吗? 美国的football是指棒球还是指足球? cold when will it weather I is cover the连词成句 Jack is one of my friend .We like each other.改错（） A friend of ____ is in front of the classroom A I B mine C me D my they,re的单数 in-chronological-order是什么意思 in the proper sense是什么意思 what he said (使.生气)our teacher 在英国用lift而在美国用什么表示同一个意思呢 Don't Touch My KaKa! don't touch my RT Don't touch my ****,don't touch my 化妆品(4个中文汉字) Without my ______,don't touch my things这里可以填agreement吗? ___ we have come ,Let's stay and enjoy it.A.As B.Since选哪个呢?请详细说明原因!as ,since 之间有什么细微地区别? Yes,Ican的中文意思 Ican'timagineyourlooks的汉语意思 Let' enjoy the music world, decline是什么意思 decline 的反义词是什么?increas? I decline是什么意思 "Quality in a product is not what we put in it,but what our customer gets out of it” (Peter Druck怎么翻译? 改错What we should do now is not to increase production,but improving the quality of our productbut后面的improving应该改为improve还是to improve,还是两者均可, let's go out and enjoy the sunsshine中文意思 let's enjoy the concert tohether.改为反义疑问句 Let’s enjoy the pleasure of basket together ,ok book和order有什么区别?book做动词时也有订购的意思,和order有什么不同? book和order的区别 order 和book意为“预订”时用法有什么区别?