A:No problem
B:Not at all
C:Yes, I would
D:Forget it
as if; in memory of; look forward to: hold one's breath, play a trick on
A、B两种元素为某周期第ⅡA族和第ⅢA族元素,若A元素的原子序数为x,则B元素的原子序数可能为( )
①x+1 ②x+8 ③x+11 ④x+18 ⑤x+25 ⑥x+32.
翻阅古文献有关以下两幅图片上官职的记载,你从中能够得到的句子是( )