The heart pumps blood in two directions．,The blood is c-找考题网

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A．The heart pumps blood in two directions.
B．The blood is circulated round the body in one direction only by the pumping action of the heart.
C．The blood moved with a backward and forward motion.
D．The heart pumps blood in all directions.

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A．The relationship between mice, rats and monkeys.B．The relationship between diet and animals.C．The relationship between diet and man.D．The relationship between diet and health.

A．The relationship between mice, rats and monkeys.
B．The relationship between diet and animals.
C．The relationship between diet and man.
D．The relationship between diet and health.

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A．At a butcher shop.B．At a restaurant.C．At a bookstore.D．At a grocery store.

A．At a butcher shop.
B．At a restaurant.
C．At a bookstore.
D．At a grocery store.

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