Diarrhea(腹泻) is the main cause of death among children in developing countries. Diarrhea results when the body tries to clear itself of harmful bacteria (细菌). The body does this by getting out liquids, sometimes uncontrollably. If too much water, sugar and salt are lost in this way, the body cannot work normally. The child may die.
The United Nations International Children's Fund, UNICF, introduces a technique. It uses a simple mixture of sugar and salt in water. The mixture does not stop diarrhea. But if used often as needed, it keeps fluid (体液) levels normal until the body has fought off the harmful bacteria.
In Egypt, for example, the treatment was used in a children’s health care program in the province of Alexandria. It reduced by one-half the number of deaths caused by diarrhea. The technique has now been used throughout tile country.
According to the passage, a large number of Children can be saved only when ______.
A.the life-saving ways are medically effective
B.their parents are rich enough for the life-saving techniques
C.the life-saving techniques are easy to use
D.their parents learn the life-saving techniques
第7题
A.胰高血糖素 B.促胰液素
C.生长抑素 D.胰多肽
E.胰岛素
胰岛A细胞分泌()E.
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