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【单选题】
关于加工番茄施肥描述正确的是:A.
苗期阶段大量追肥
B.
开花期阶段大量追肥
C.
果实膨大期阶段大量追施磷肥
D.
果实成熟期阶段大量追施氮肥
E.
果实膨大期阶段大量追施氮肥，适当叶面喷施磷酸二氢钾
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皮皮学刷刷变学霸
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【简答题】Before the rise of industry people have less ______ since they had to work from dawn to dark with little time allowed for meals.
【单选题】Since the earth’s resources are getting fewer and fewer，recycling industry certainly＿＿big benefits in the near future．
A.
promises
B.
attempts
C.
demands
D.
invests
【单选题】Since the industrial revolution, government, society, and industry have attempted to channel technological progress in useful directions. Whether it is the printing press, the cotton gin the automobil...
A.
government funding in R&D period.
B.
complete centralization of power.
C.
direct administrative interference.
D.
identifying promising technology trends.
【简答题】( )was the leading industry Since
American Independence ;
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