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一、用心思考,正确填空1.在括号里填上“升”或“毫升”一个健康成人血液的总量约4～5(),义务献血者每次献血量一般为200(),献血一般不会损害人的健康。
First, the mind to think about the correct fill in the blanks 1. Fill in the parentheses “liter ” or “ml ” The total amount of a healthy adult’s blood is about 4 ~ 5 (), voluntary blood donors each donation volume is generally 200 ), Donating blood generally does not harm people’s health.