题型:问答题 简答题 - Every time the exam is over, I will_______ the results.- Take it easy ! Grades are not our whole life.A.be worried aboutB.be pleased withC.be good atD.be satisfied with 查看答案
题型:问答题 简答题 下列说法不正确的是[ ]A.28g乙烯与28g丙烯中均含有6NA对共用电子对B.1molH2O2在MnO2作催化剂的条件下完全分解,转移电子数为2NA C.标准状况下,3.5g35Cl2所含中子数为1.8NAD.常温常压下,22g氧气和26g臭氧混合后,混合气体所含氧原子总数为3NA 查看答案