题目: 机电维修工入井必须随身携带什么? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0211/4e688236aeea2a036f4070c6cd569403.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:单项选择题 Which of the following is NOT true A.An integrated metropolis is an MSA.B.MSA stands for Metropolitan Statistical Area.C.A metropolis includes at least a metropolitan.D.An MSA refers to city and its suburbs, with over 50,000 people. 查看答案
题型:填空题 配平下列化学方程式(化学计量数为1也要填在横线上):(1)____Hg+____O2______HgO(2)_______Fe2O3+______C______Fe+ _______CO2(3)_____KClO3_____KCl+______O2↑(4)______C2H4+_____O2_____H2O+____CO2(5)_______H2+_______WO3____W+______H2O(6)_____C3H6O3+______O2______CO2+_____H2O 查看答案