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【单选题】
下列微生物的代谢产物中没有菌种特异性的一组是(1氨基酸 2核苷酸 3多糖 4毒素 5激素 6脂类 7维生素 8抗生素 9色素)A.
①②③④⑤
B.
①②③⑥⑦
C.
①③⑤⑥⑦
D.
①③⑦⑧⑨
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【简答题】生物滤池组成包括:滤床、( )、 排水系统等三部分组成 。
【单选题】The weather forecast is not f o r cooler weather; , it is expected to be warmer.
A.
or anything
B.
in anything
C.
if anything
D.
f o r anything
【判断题】In an ideal world, no inventory would be required because manufacturers could exactly forecast demand and produce only that much.
A.
正确
B.
错误
【简答题】听下面一段材料，回答第1-3题。 1. What do the two speakers talk about? A. Their trips to a foreign country. B. Their dinners in a restaurant. C. Their to some families. 2. What did the man enjoy about his visit? A....
【简答题】Produce a forecast for 2012 using exponential smoothing ( α = 0.4)
【简答题】International Weather Forecast（January 18 th，2008） Paris Weather ·Today：Plentiful sunshine High 59F．Winds NE at 5 to 10 mph． ·Tonight：Generally clear．Low near 35F．Winds light and variable． ·Tomorrow：A...
【单选题】---It’s supposed to rain tomorrow. ---I know, but the forecast ___ be wrong. Weather forecasts are far from 100 percent accurate.
A.
must
B.
could
C.
should
D.
will
【简答题】Produce a forecast for 2011 using 3 period moving average
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