用NA表示阿伏加德罗常数的值。下列说法正确的是 ( )A.标准状况下,22.4L乙醇中含有的碳原子数目为2NApfueB.1mol CnH2n含有的共用电子对数为(3n+1)NAC.1mol CO2与1mol Na2O2完全反应时,转移的电子数目为NAD.1mol/L的FeCl3溶液中,所含Fe3+的数目小于NA 答案:C解析: Actually, girls can be they want to be just like boys, whether it is a pilot, an astronaut, or a general manager.A. wherever B .however C. whatever D. whoever