(45a3-16a2b+3a)÷(-13a)
=-135a2+12ab-9.
—You haven't been to Beijing, have you — ______. And how I wish to go there again!
A. Yes, I haveB. Yes, I haven'tC. No, I haveD. No, I haven't
基金管理公司的发起人可以是()
A.保险公司
B.证券公司
C.商业银行
D.信托投资公司