显微外科手术后，为了预防吻合血管痉挛或血栓形成常采用()A．扩血管药、抗凝血药和抗生

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。

Saving water
In China, ___1______ takes 60 percent of China’s water use.
Tips for saving water
_2_______ off the water while you’re brushing your teeth.	Take _____3__ showers. It’s best to get your showers down to three minutes.
Using a plastic bottle with water, put it in your toilet tank to __4_____ water.		Don’t let the water _5_____when you wash dishes and clothes.
Don’t use the __6______________unitl it is full of clothes.