[问答题] 要使明胶奶糖生产工艺更加合理应考滤哪些因素？

Which two create an InputStream and open file the “file.txt” for reading？ （） [" InputStream in=new FileReader（“file.txt”）；"," InputStream in=new FileInputStream（“file.txt”）；"," InputStream in=new InputStreamFileReader （“file.txt”， “read”）；"," FileInputStream in=new FileReader（new File（“file.txt”））；"," FileInputStream in=new FileInputStream（new File（“file.txt”））；"] 生成性目标 某厂分级给矿，溢流，返矿中－0.74mm含量分别为33.53％、62.27％、12.15％，则分级量效率为（）%。 ["79.22","55.01","44.09"] 原生质 旋转机构的设备振动故障诊断的振动检测标准有（）. ["转速值判断标准","圆周速度值判断标准","绝对判断标准","相对判断标准","类比判断标准","综合判断标准"] 要使明胶奶糖生产工艺更加合理应考滤哪些因素？