A barter economy is one in which______.
A. value is decided by weight
B. value is decided by number
C. money is used goods are not exchanged
D. goods are exchanged and money is not used
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What is the most obvious difference between men and women shoppers？
A. Men do not try clothes on in a shop.
B. Women bargain for their clothes, but men do not.
C. Women care more about the quality than men.
D. The time they take over buying clothes.
A．It was in spring.B．It was in winter.C．It was in summer.D．It was in fall.
A. It was in spring.
B. It was in winter.
C. It was in summer.
D. It was in fall.
A．It went out of use 300 years ago.B．It was invented after the short bow.C．It was disc
A. It went out of use 300 years ago.
B. It was invented after the short bow.
C. It was discovered before fire and the wheel.
D. It's still in use today.
A．The quality of air.B．The number of trees.C．The lifecycle of trees.D．The intensity of
A. The quality of air.
B. The number of trees.
C. The lifecycle of trees.
D. The intensity of solar burning.
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