题目

设f(x)=，则不等式|f-1(x)|＞1的解集为__________________. 答案：｛x|x＜0且x≠-1｝解析：f-1(x)=＞1,同解于∴x＜0且x≠-1.-- What were you doing when Ton phoned you?-- I had just finished my work and ____ to take a shower.   A. had started       B. started          C. have started     D. was starting