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【单选题】
The product life cycle model has 5 stages – for how many of the stages is it thought that a loss could be made?A.
1
B.
2
C.
3
D.
4
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【单选题】大肠内的细菌可利用肠内简单的物质合成下列哪种维生素
A.
vitA 和vitＢ
B.
vitD 和vitE
C.
vitK 和vitB复合物
D.
vitE 和vitA
E.
叶酸和vitK
【单选题】A good knowledge of the difference between marketing and selling leads to ______.
A.
the efficient production of goods
B.
a perfect command of salesmanship
C.
a basic command of the marketing concept
D.
the conversion of goods into money
【单选题】The TV programme has ______ on the children as_______as the old.
A.
a good effect; good
B.
a positive effect; well
C.
a good affect; well
D.
affect; well
相关题目：
【单选题】大肠内的细菌可利用肠内简单的物质合成下列哪种维生素
A.
vitA 和vitＢ
B.
vitD 和vitE
C.
vitK 和vitB复合物
D.
vitE 和vitA
E.
叶酸和vitK