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【单选题】“当商品经济发展到一定阶段,出现巨型垄断性生产企业,而零售企业仍然数量众多、规模较小,具有充分的竞争性。”上述描述是那种类型供应链为主体的背景条件。
A.
供应商
B.
生产商
C.
批发商
D.
零售商
【单选题】重症病毒性肝炎患者出血倾向最重要的原因是
A.
骨髓造血功能障碍，血小板减少
B.
凝血因子合成障碍
C.
毛细血管脆性增加
D.
.X、XII因子减少
E.
维生素K吸收障碍
【单选题】Petroleum products, such as gasoline, kerosine, home heating oil, residual fuel oil, and lubricating oil, all come from one source — crude oil found below the earth' s surface, as well as under large ...
A.
Crude oil is found below land and water.
B.
Crude oil is always found a few hundred feet below the surface.
C.
Pumping and pressure force crude oil to the surface.
D.
A variety of petroleum products is obtained from crude oil.
【单选题】Petroleum products, such as gasoline, kerosine, home heating oil, residual fuel oil, and lubricating oil, all come from one source -- crude oil found below the earth' s surface, as well as under large...
A.
Crude oil is found below land and water.
B.
Crude oil is always found a few hundred feet below the surface.
C.
Pumping and pressure force crude oil to the surface.
D.
A variety of petroleum products is obtained from crude oil.
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