It's certainly hard work. But, ________, a man who wishes to have a career has to make a great many

sacrifices. [ ]

A. on the contrary      

B. on the other hand    

C. for another      

D. in addition

近代中国“简直是将几十世纪缩在一时：自松油片以至电灯，自独轮车以至飞机。自标枪以至机关枪……都摩肩挨背的存在”，鲁迅的这段话无法反映当时社会[ ]

A．由封闭走向开放

B．东西方文明的交汇与碰撞

C．从贫穷走到富裕

D．从传统社会向近代社会转型