如果(2a+2b+1)(2a+2b-1)=63,那么a+b的值为( )。
±4
My sister _____ reading. She often spends much money on books. [ ]
A. like
B. don't like
C. likes
D. doesn't like
()是指通过目标公司的大量举债来向股东买公司股权,从而改变公司所有权结构和相应的控制权格局以及公司资产结构的行为。
A.股票回购
B.管理层收购
C.转为非上市公司
D.杠杆收购