单选题 Never far from positions of influence, wealthier from his broadcasting activities______the biggest moguls, he is in many ways on the edge of things.

A、 than all but
B、 as all but
C、 but than all
D、 but as all

【正确答案】 A

【答案解析】解析：wealthier是wealthy的比较级形式，与the biggest moguls作对比。