单项选择题
| Water is (41)
important of all the things we (42) and drink. Not
many people understand this, (43) it’s quite true. The human
body (人体) can go (44) food for a long time, but two
(45) three days without water can usually (46)
people die. Many people don’ t understand how much water the human body needs to work well and many people do not drink (47) , even (48) hot weather. Our body is (49) water, about 65% to 75%, ff we do not have enough water, we’ll (50) tired and many will get ill. So you see, how important water is to us all. |