C:标准状况下,22.4L二氯甲烷的分子数约为NA个
A:28g乙烯和28g丙烯中均含有6 NA对共用电子对
B:常温下,1L0.1mol·L-1的NH4NO3溶液中氮原子数为0.2NA
D:23g钠在氧气中完全燃烧失去电子数为NA
____
右图佛座侧面刻有“大唐龙朔二年三藏法师玄奘敬造释迦佛像供养”。“三藏法师玄奘”的历史功绩有 ( )
vegetable,opposite,because,get,go
Jim's grandparents live in a black building.____the building is a bus station.Jim always____off the bus there when he comes to see his grandparents.Between the station and the building is a busy street.____down the street three hundred metres and turn right,there is a big market.Jim's grandparents usually buy fruit,meat and____there.Now they are buying beef there.They like living there____it's easy for them to buy what they need and go out.