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【多选题】
根据配送中心的功能，电子商务物流配送可以分为()。A.
存储型配送中心
B.
单一配送中心
C.
流通型配送中心
D.
加工型配送中心
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】Car drivers have to obey traffic regulations that tell them the right things to do on the road to avoid crashes. Cyclists who give signals before turning or stopping help prevent .
A.
accidents
B.
mistakes
C.
falls
D.
deaths
【简答题】概算定额的编制依据有（ ）。
【单选题】The long run is distinguished from the short run because only in the long run
A.
output prices can vary.
B.
factor of production prices can vary.
C.
the quantities of all factors of production can be varied.
D.
the firm no longer maximizes its profit.
【单选题】In which case can we be sure real GDP rises in the short run?
A.
foreign economies expand and taxes rise
B.
foreign economies expand and taxes fall
C.
foreign economies contract and taxes fall
D.
None of the above are correct.
【判断题】The short-run industry supply curve can be found by horizontally summing the short-run supply curves of all the individual firms in the industry.
A.
正确
B.
错误
【简答题】下列不属于概算定额的编制依据的是（ ）。
【简答题】概算定额的编制依据有（ ）。
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