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【单选题】
当其他生产要素不变，随着劳动投入的不断增加，边际产量表现出来的先上升后下降的变化规律，这一规律被称为（ ）。A.
边际产量递减规律
B.
边际成本递增规律
C.
边际成本递减规律
D.
边际产量递增规律
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【单选题】The Smiths arrived at a shop, in front of _sat an elder farmer.
A.
whom
B.
who
C.
which
D.
that
【单选题】A restaurant orders 150 kg of pumpkins from the farmer's market. The farmer fills the order with 23 pumpkins. The average mass of the first 20 pumpkins is 6.5 kg. What must be the minimum average mass...
A.
5.5 kg
B.
5.67 kg
C.
6.67 kg
D.
7 kg
E.
11.5 kg
【简答题】One day a farmer’s donkey fell down into a well. The animal cried piteously for hours as the farmer tried to figure out what to do. Finally, he decided that the animal was old, and the well needed 31 ...
【单选题】关于商品检验时间和地点的规定,我国进出口业务中使用较多的是()
A.
离岸品质，离岸重量
B.
到岸品质，到岸重量
C.
离岸品质，到岸重量
D.
出口国装运港，进口国目的港复验
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【单选题】The Smiths arrived at a shop, in front of _sat an elder farmer.
A.
whom
B.
who
C.
which
D.
that
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