单选题
The sales manager was so {{U}}adamant{{/U}} about her idea that it was out
of the question for any one to talk her out of it ______.
A.adaptable
B.anxious
C.firm
D.talkative
【正确答案】
C
【答案解析】[解析] A选项adaptable(能适应的，可修改的)、B选项anxious(焦急的)、D选项talkative(多话的)都不正确。本句说销售经理固执己见，任何人想让她放弃意见都是不可能的。C选项firm(坚硬的，坚定的)符合句意，如：The teacher was firm and did not change her mind.(老师很坚决，他不改变主意。)因此C选项为正确答案。