(本小题满分12分) 已知函数. (Ⅰ)判断的奇偶性; (Ⅱ)若,求的值. 答案:(本小题满分12分) 解:(Ⅰ)定义域为R,,故是奇函数. ……(6分) (Ⅱ) 由,则……………………………………(8分) 又,即……………………………………(10分) 由,解得a=1,b=1.………………………………………(12分) The first prize goes to _______ makes the greatest contribution to the company. A. whomever B. whichever C. no matter who D. whoever