单项选择题


Questions 19 to 22 are based on the conversation you have just heard.

A．You can grow vegetables vertically.
B．You can raise plants in a confined area.
C．You can plant a wide variety of plains together.
D．You can enjoy the beautiful scenery.
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单项选择题
A．On a mountain path.B．In a supermarket.C．On a road.D．In a railway station.
A．On a mountain path.
B．In a supermarket.
C．On a road.
D．In a railway station.
单项选择题
By saying the growth of the proportion... to younger generations. (Line 2, Para. 5), Anthea Tinker really means that ______.
A．currently wealth flows from old generation to younger generation
B．traditionally wealth flows from younger generation to old generation
C．with the increasingly big population of over 50, the trend arises that wealth flews from younger generation to old generation
D．with more and more people of over 50, traditions have been reversed
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