题目

Although he didn't expect ___ me here, he adviced ___ to the nearest resturant. A. to find; going   B. finding, to go   C. to find, to go    D.finding, going 答案：A 解析: expect要用不定式当宾语. advise要接动名词作宾语.NA为阿伏加德罗常数的数值，下列说法正确的是（ ）A．7.2 g CaO2晶体中阴离子和阳离子总数为0.3 NAB．0.1 mol/L NH4Cl溶液中Cl-离子数目为0.1 NAC．反应3H2(g)＋N2(g) 2NH3(g) ΔH＝－92 kJ/mol，放出热量9.2 kJ时，转移电子0.6 NAD．0.1 mol H2O2分子中含极性共价键数目为0.3 NA