34岁经产妇，妇科检查：宫颈中度糜烂，宫颈口松弛，子宫后倾屈，双附件未扪及。易选择的

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Of all the things we eat and drink, water is the most important. Not many people realize this, but it is quite true.    小题1:  , but two or three days without water usually leads to death. Many people do not understand how much water the human body needs at work and many people do not drink enough especially in cold weather.    小题2:  . Most people drink when they are thirsty, but we often need more water, especially after doing exercise.
___小题3:  . Water is very important in several different ways. Most people need about five to seven liters of water every day, but we do not need to drink that amount, because a lot of water comes from the food we eat.    小题4:  , however, we feel tired and may become ill. 

A. If we do not have enough water B. A man’s body contains 65% --- 75% water C. Most people drink enough only in hot weather D. We need to drink water before doing exercise E. The human body can live without food for a long time