起重设备安装前,应检查设备技术文件是否齐全、有无出厂合格证、有无必要的出厂试验记录、()等。 ["出厂一检验单位的资格","场地是否合适","材料及附件的型号、规格和数量,且应符合设计和设备技术要求"]
专用要素
public class test { public static void add3 (Integer i){ int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } } What is the result?() [" Compilation will fail."," The program prints “0”."," The program prints “3”."," Compilation will succeed but an exception will be thrown at line 3."]
磨矿作业的给矿量大小、()、浓度大小及生产波动等都直接影响选别指标。 ["产品粒度粗细","入矿品位","原矿可磨性","产品的"]
采用扁钢作防雷装置的引下线时,其截面积应不小于()mm2。 ["24","48","75","100"]
客户忠诚可能带来的效果