A:在同温同压时,相同体积的任何气体单质所含的原子数相同
B:2 g H2所含的原子数目为NA
C:在常温常压下,11.2 L N2所含的原子数为NA
D:17 g NH3所含氢原子数目为3NA
— How does she feel ?
—She is ____ .