The ____________ (contract) shall be responsible for all handling and transport of the woods .
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Increase ____________ (efficient) and shorten the time limit for the project .
____________ (renew) energy will become more important as time goes on .
This will ____________ (enhancement) our work efficiency .
货币政策可通过“信贷可得性”效应来完成，这表明：（ ）。
A. 信贷市场上存在着“信贷配给”现象
B. 货币政策遇到“流动性陷阱”仍有效
C. 它强调利率的货币传导机制作用
D. 货币政策可通过影响金融机构的贷款规模进而影响总支出和国民收入
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