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【单选题】
“世界上没有免费的午餐”这一说法的前提是( )。A.
任何事物都有机会成本
B.
人是自私的
C.
政府不总是补贴食品生产
D.
不应出现食品银行
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举一反三
【单选题】Should it rain tomorrow, we_____ climbing.
A.
wouldn’t have gone
B.
won’t go
C.
wouldn’t go
D.
don’t go
【单选题】it rain tomorrow, we would have to call off the hike.
A.
Will
B.
Would
C.
Should
D.
Were
【单选题】it rain tomorrow, we would have to put off the meeting.
A.
Were
B.
Should
C.
Would
D.
Will
【单选题】___ it rain tomorrow, we would have to cancel the football match.
A.
Were
B.
Would
C.
Should
D.
Will
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