题目

设NA为阿伏加德罗常数的值，下列说法正确的是（）。 A.2.4g镁变成镁离子时失去的电子数为0.1NAB.2g氢气含有的原子数为NAC.在25℃、1.01×105Pa时，11.2L氮气含有的原子数为NAD.17g氨气含有的电子数为10NA 答案：D【试题分析】 23. The way the guests_____in the hotel influenced their evaluation(评价) of the service. A. treated             B. were treated             C. would treat              D. would be treated