问题:玩具拉力测试时,在5s内分别以平行于测试部件主轴和垂直于测试部件的主轴方向均匀施加()的力,并保持10s。...
Thursday, September 22, 2022
问题:单选题纸桶的标准代号是()A GB/T14187B GB 12463C GB/T13252D GB/T325.1...
Tuesday, August 29, 2023
Thursday, September 22, 2022
问题:判断题可编程序控制器只具数字量或模拟量输入输出控制的能力。A 对B 错...
Friday, August 11, 2023
Thursday, September 22, 2022
Friday, September 16, 2022
问题:单选题闲置资产的新增流程为:先以()形式提出申请,经技术群相应技术部确认可列入闲置的,再以行政签呈形式提报。A 电话B 邮件C 签呈D 联络单...
Saturday, March 25, 2023
问题:玩具进行相应燃烧性能测试时,火焰高度为()(燃烧器垂直放置时)...
Thursday, September 22, 2022
问题:单选题烟花爆竹产品燃放后不应继续燃烧超过()s。A 20B 25C 30D 35...
Thursday, December 1, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
问题:无菌罐清洗过程是由清洗设备提供动力保证清洗液的循环。...
Wednesday, September 14, 2022
问题:胶粘剂中游离甲醛的测定时,样品溶解于水后应在()条件下进行蒸馏。...
Friday, September 16, 2022
问题:在原子发射光谱分析(简称AES)中,光源的作用是对试样的蒸发和激发提供所需要的能量。若对某种低熔点固体合金中一些难激发的...
Thursday, September 22, 2022
问题:GB 21027-2007标准规定,学生用涂改制品中有机溶剂苯的限量值是()mg/kg。...
Tuesday, September 20, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022