【简答题】阅读理解 Blood Donation(献血) A grown-up person has ten or eleven pints of blood inside his or her body. We can lose a pint of blood without feeling anything, but if we lose too much blood, we will feel wea...
【简答题】阅读理解。 Every year, World Blood Day is celebrated by blood services worldwide on 14 June, the birthday of Nobel Prize winner Karl Landsteiner, the man who discovered the ABO blood group system. If you h...
【简答题】阅读理解。 Blood Donation (献血) A grown-up person has ten or eleven pints (品脱) of blood inside his or her body. We can lose a pint of blood without feeling, but if we lose too much blood, we feel weak and c...
【单选题】阅读材料,回答题。 High Blood Pressure There is evidence that the usual variety of high blood pressure is,in part,a familial disease.Since families have similar genes as well as similar environment,familial di...
A.
Genetic constitution,or hereditary factor is all important factor that may underlie hypertension
B.
Excessive use of salt may cause high blood pressure
C.
Shared environmental factors may lead to familial disease
D.
There are two different kinds of strains in animals which cause their different reactions to excess salt ingestion