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【简答题】
产品的生命周期包括投入期、成长期、成熟期和衰退期。()
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【简答题】Safety stocks on items purchased from outside vendors may be justified because of long lead times, potential supply discontinuity, and ________________ in usage rates。
【单选题】Thanks to our ___ schedule, we got our task accomplished ahead of time．
A.
active
B.
flexible
C.
positive
D.
fixed
【简答题】A．Share price. B．High-tech stocks. C．Japanese yen. D．Most of the stocks.
【单选题】Although we met with some unexpected difficulties at the beginning, we fulfilled our task______.
A.
all the better
B.
all the time
C.
all the same
D.
all over
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