清政府发起洋务运动的根本目的是( )
A:学习西方先进的科学技术
B:讨好洋人
C:维护清朝统治
D:使中国走上资本主义的道路
根据如图回答第下列小题:
-- Li Ming said he would come here, _______ he hasn't arrived.
-- Don't worry. He is on the way. ______, there is much traffic, so it will take more time.
(Ⅰ)解不等式f(2x)+f(x+4)≥8;
(Ⅱ)若|a|<1,|b|<1,a≠0,求证: f(ab)|a|>f(ba) .