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[问答题] 为什么配合饲料配方时需要考虑原料的消化利用率?

下列哪种设备的安全监察不适用《特种设备安全监察条例》() ["客运索道","铁路机车","大型游乐设施","起重机械"] 农信银业务发展考评指标包括()。 ["业务总量占比指标","主动发起业务占比指标","网点覆盖率指标","专项汇款指标"] 强制阀本身可能发生哪些故障,如何处理? Explosions do occur () caused by the ignition of oil or vapour gaining access from compressors or defective engine starting valves. ["in boiler drums","in refrigerating plants","in starting air pipes","in air cooler"] A Danforth lightweight anchor does NOT hold well in which type of bottom? () ["Mud","Grass","Sand","Clay"] 为什么配合饲料配方时需要考虑原料的消化利用率?
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