JJG14-1997检定规程要求,进行偏载测试时,同一砝码在不同位置的示值,其误差应 发布时间:2017-05-07 17:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: JJG14-1997检定规程要求,进行偏载测试时,同一砝码在不同位置的示值,其误差应不大于该秤量的()。A.最大允许误差B.最小允许误差C.质量修正值D.质量标称值
题型:单项选择题 选用方框中的单词或词组填空,使句子完整。happy age watching like born I have a cousin . His name is Tom. He was _______ in Xi'an. He was an 11-year-old boy. I am 11, too. Weare the same _______. He likes eating hot food and _______ TV. I often play with him in summer holiday. Weclimb the hills, watch TV, eat all kinds of food and do everything together. Everyone says we are _______ twin brothers. We are also very _______ to hear that. 查看答案
题型:单项选择题 下列叙述正确的是( )A.氯化钠溶液能导电,所以氯化钠溶液是电解质B.氯化氢水溶液能导电,所以氯化氢是电解质C.二氧化碳溶于水能导电,所以二氧化碳是电解质D.金属铜能导电,所以铜是电解质 查看答案