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【单选题】
Each of us was very happy the end of the day.A.
at
B.
on C, with D. for
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反馈参考答案：
举一反三
【单选题】Private solutions may not be possible due to the costs of negotiating and enforcing these solutions. Such costs are called
A.
transaction costs.
B.
corrective costs.
C.
input costs.
D.
private costs.
【单选题】The solutions would include _____ much of the debt into private securities and government bonds.
A.
adapting
B.
altering
C.
converting
D.
varying
【多选题】紧扣社会主要矛盾的变化,赢得全面建成小康社会的最后胜利,应( )
A.
坚决打好防范化解重大风险攻坚战
B.
坚决打好污染防治 攻坚战
C.
坚决打好精准脱贫攻坚战
D.
确保经济社会持续健康发展
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