先化简，再求值：6a+7a2-4a-3a2，其中a=-3． 发布时间：2017-05-20 19:04 │ 来源：www.tikuol.com 题型：解答题 问题： 先化简，再求值：6a+7a2-4a-3a2，其中a=-3．
题型：解答题 比较法中，采用间接比较法对可比实例价格进行房地产状况调整，其中可比实例的房地产状况劣于标准房地产状况，价格低2%；估价对象的房地产状况优于标准房地产状况，价格高1%，若改为直接比较，则房地产状况的调整系数为（）。A.1.05B.0.97C.0.98D.1.03 查看答案
题型：解答题 Choose the best response from A-F in the box according to the sentence given.A．A dollar, please. C．OK. No problem. E．Shanghai. G．A new CD player. I．She'll go to Beijing for some days B．Three years. D．January 2nd. F．She'll do her homework. H．How about half past 8? J．By bus. ( )1．What will Wang Ying do after supper? ( )2．What will you buy this Sunday? ( )3．What time will we meet in the zoo tomorrow? ( )4．How will we get there? ( )5．What's Wei Hua's plan for winter holidays? ( )6．Do you know where our English teacher comes from? ( )7．What? We'll have an exam? When? ( )8．It's too hot. Would you please turn on the air-conditioning?( )9．How long have you studied here? ( )10．I'd like an ice-cream. How much is this? 查看答案