二次大战后,南北朝鲜的分裂是由于
A:日本法西斯对朝鲜分而治之的结果
B:1953年《朝鲜停战协定》的规定
C:南北朝鲜两种社会制度的对立
D:日本投降后,美苏军队进驻朝鲜的分界线造成的
小王因为意外伤害丧失听觉,医生检查发现耳的结构完好无损,那么可能伤的部位是( )
根据短文内容判断下列说法的正误。
Hello! I'm John.I am a policeman.I work at night.I drive my car and go to work at 9:00 in the evening every day.So I eat dinner at 8:00.I go home at 5:00 in the morning.I eat breakfast at 5:30,then I go to bed.I get up at 1:30 in the afternoon.Usually I eat lunch at 2:00 and read some books at about 2:30.I play spots from 4:00 to 5:00.On the weekend,I usually go shopping with my family.
解方程:|x|+1=3.
解法一:当x≥0时,原方程化为x+1=3.解方程,得x=2;当x<0时,原方程化为﹣x+1=3.解方程,得x=﹣2.所以方程|x|+1=3的解是x=2或x=﹣2.
解法二:移项,得|x|=3﹣1.合并同类项,得|x|=2.由绝对值的意义知x=±2,所以原方程的解为x=2或x=﹣2.
用你学到的方法解方程:2|x|﹣3=5.(用两种方法解)
下列关于动物运动和行为的叙述中,正确的是( )