题型:问答题 — Can you see _________ in the tree? —No, I can see _________ . [ ]A. something; nothing B. anything; nothing C. nothing; anything D. anything; something 查看答案
题型:问答题 在298K,标准状态下,lmolC(石墨)、1molC(金刚石)在氧气中完全燃烧,分别为-393.7kJ·mol-1和-395.6kJ·mol-1,则C(金刚石)的为()10·mol-1。A.-789.3B.-1.9C.0D.1.9 查看答案