单项选择题

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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单项选择题
A．To complete the government’s energy plans within two decades.B．To discuss the plans with the Opposition.C．To talk with anti -nuclear and environmentalist groups.D．To build more nuclear power stations.
A．To complete the government’s energy plans within two decades.
B．To discuss the plans with the Opposition.
C．To talk with anti -nuclear and environmentalist groups.
D．To build more nuclear power stations.
单项选择题
A．A weak heart.B．A skin disease.C．Bronchitis.D．Kidney trouble.
A．A weak heart.
B．A skin disease.
C．Bronchitis.
D．Kidney trouble.
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