问题
填空题
若集合A={x|2x+1＞0}，B={x||x-1|＜2}，则A∩B=______．
答案
由题意A={x|2x+1＞0}={x|x＞-
}，B={x||x-1|＜2}={x|-1＜x＜3}，1 2
所以A∩B=（-
，3）1 2
故答案为（-
，3）1 2
搜题请搜索小程序“爱下问搜题”
若集合A={x|2x+1＞0}，B={x||x-1|＜2}，则A∩B=______．
由题意A={x|2x+1＞0}={x|x＞-
}，B={x||x-1|＜2}={x|-1＜x＜3}，1 2
所以A∩B=（-
，3）1 2
故答案为（-
，3）1 2
In China, water is used in many different ways. Farming takes 60 percent of China’s water use. Personal use, like drinking water, takes only 12 pencent. Fifty- three countries and regions (地方) in the world have water shortages. About one fifth of the world’s population was suffer(遭受) from water shortage. Tips for saving water Saving water is as easy as turning off a tap! Here are some simple things you can do at home. ² Turn off the water while you’re brushing your teeth. ² Take shorter showers. Can you get your showers down to three minutes? ² Fill a liter (升) plastic bottle with water and put it in your toilet tank. It will take up the same space as the water usually does, but in a year, it will keep 20,000 liters of water. ² When you wash dishes and clothes, don’t let the water run. ² Use the washing machine only when it’s full of clothes. ² 根据短文内容，填写下面表格。
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