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【单选题】
烘窑前（）小时主操联系岗位人员启动窑尾电收尘加热器系统，以防绝缘附件结露及落灰受潮。
A.
8
B.
10
C.
12
D.
14
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【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