We can infer from the passage that ______.
A. when salt is added to their diets, rats and human beings act in the same way
B. the near future will see a cure for high blood pressure
C. the medical field is desperately in need of research
D. a tendency toward high blood pressure may be a genetic factor
It is implied in the second paragraph that ______.
A. a genetic factor is the main factor to develop high blood pressure
B. amount of salt eating is an important factor to develop high blood pressure
C. the rate to develop high blood pressure lies in the reaction to salt
D. high blood pressure can be affected by mating
On the third Thursday Mrs. Clarke went out ______.
A. because she didn't want to miss the club again
B. to see if the thief was hanging about outside
C. to the club but then changed her mind
D. in an attempt to trick the thief
英国心理学家培因把人的性格分为理智型、情绪型和()型。
A. 经济
B. 理论
C. 意志
D. 独立
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