单项选择题

In the experiments, ______.

A．there was an increase in the human consumption of salt
B．salt -eaters have bad health conditions
C．the environment was strictly monitored
D．high -blood pressure was easier put under control

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热门试题

单项选择题

Which statement relates the main idea of this passage

A．When salt is added to their diets, rats and men react in much the same way.
B．The near future will see a cure for high blood pressure.
C．Modem research has shown that high blood pressure is a result of salt in the diet.
D．A tendency toward high blood pressure may be a hereditary factor.

单项选择题

According to the passage, it is possible for us to tell one type of person from another because ______.

A．people differ in their behavioral and physical characteristics
B．human fingerprints provide unique information
C．people's behavior can be easily described in words
D．human faces have complex features