单选题
Why will American need to export food in 1997?
A、
Because the farmers will need a lot of money.
B、
Because it will need money to buy oil.
C、
Because it will have too much food for its own use.
D、
Because it wants to help other countries.
【正确答案】
B
【答案解析】
第五段最后一行：“Food is needed for export to pay for some trickles oil and for other resources．”，所以美国人为了进口石油才需要出口粮食赚钱。
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