如图是向100mL的盐酸中逐滴加入NaOH溶液时,混合溶液的pH变化图象,根据图象得出的结论正确的是( )
A:原盐酸溶液的浓度为0.01mol•L﹣1
B:加入的NaOH溶液的浓度为0.1mol•L﹣1
C:至滴定终点用去NaOH为0.01 mol
D:pH=12时,共加入NaOH溶液100 mL
被三大洋包围的大洲和几乎被三大洋包围的大洲是( )
—Why don't you divide the students into six groups?—_________.
—How does he go to school every day?
—He ____ to school every day.