因为解集为x<1,所以（a-1）与（1-a）异号
-1
推荐
猜你喜欢
- Which of the following statements is not true about St.Augustine?
- a可以被1整除,ab可以被2整除.abcdefghi能被9整除.
- Where do they usually have lunch Well,many students take a yellow school bus or waik
- 甲乙两人在环形跑道上练习跑步,已知环形跑道一圈长400米,乙每秒钟跑6米,甲的速度是乙的2倍如果甲乙在
- 设A={1,2,3,4},试写出A上的小于或等于关系R
- 一个正方体的棱长是500厘米,它的体积是多少立方厘米?是多少立方分米?是多少立方分米?是多少立方米?
- 求：食盐,蔗糖和铜导线的化学性质和物理性质
- 五年级语文写一个雪景的片段,用上比喻、拟人、想象、夸张手法.抒发喜爱之情怎么