由题意可得x2-2x-8≥0x2-x+2≠0
∴x≥4或x≤-2x∈R
∴函数的定义域{x|x≥4或x≤-2}
Todd ________ a job in a bank, but to our surprise he didn’t take it.
A．offered
B．is offered
C．was offered
D．has offered
罗马帝国前期最为强盛的黄金时代是（）
A、朱里亚·克劳狄王朝
B、弗拉维王朝
C、安敦尼王朝
D、屋大维王朝
