根据二次根式有意义,分式有意义得:x-1≥0且1-x-1≠0,
解得:x≥1且x≠2.
故答案为:x≥1且x≠2.
—What shall we do next?
—Let's _____ to go hiking.[ ]
A. set off
B. set up
C. set down
D. set of
腹腔镜胆囊切除术的禁忌证,哪项是错误的()
A.胆囊无功能
B.高度怀疑胆囊癌
C.伴严重腹腔内感染
D.重度肝硬化门静脉高压症
E.6个月以上妊娠