单项选择题
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A.It’s closed on Mondays.
B.The man doesn’t like working in the lab.
C.It’s supposed to be open now.
D.The man locked it at ten.
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单项选择题
A.Trade coins with club members. B.Show the audience some of the coins. C.Explain how the penny is minted. D.Discuss the life of Lincoln.
A.Trade coins with club members.
B.Show the audience some of the coins.
C.Explain how the penny is minted.
D.Discuss the life of Lincoln.
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单项选择题
According to the passage, the extinction of whales is caused by ______.
A.man’s continuous evolution process
B.people’s excessive hunting and killing
C.the changing living conditions in nature
D.the demand from a booming economy
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