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【单选题】
工艺生产中，提高蒸汽加热器热负荷的有效方法是（）。
A.
提高工艺物料流量
B.
增加传热面积
C.
提高蒸汽管网压力
D.
提高工艺物料压力
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【单选题】Most shoppers know the feeling. You stand in front of piles of organic produce and wonder what those premium prices are buying you over and above what you get from standard foods. Not a lot nutrition-...
A.
do not use naturally produced fertilisers
B.
produce carbon dioxide when removing weeds
C.
use high doses of weed-killer
D.
use too many resources to qualify for organic status
【单选题】某车间采用热风采暖，热媒为30kPa的蒸汽，加热器的理论排水量为200kg/h，所配疏水器设计排水量应是下列哪一项
A.
200kg/h
B.
400kg/h
C.
600kg/h
D.
800kg/h
相关题目：
【单选题】Most shoppers know the feeling. You stand in front of piles of organic produce and wonder what those premium prices are buying you over and above what you get from standard foods. Not a lot nutrition-...
A.
do not use naturally produced fertilisers
B.
produce carbon dioxide when removing weeds
C.
use high doses of weed-killer
D.
use too many resources to qualify for organic status
【单选题】某车间采用热风采暖，热媒为30kPa的蒸汽，加热器的理论排水量为200kg/h，所配疏水器设计排水量应是下列哪一项
A.
200kg/h
B.
400kg/h
C.
600kg/h
D.
800kg/h
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