A:加入10mL 0.01mol•L﹣1的NaOH溶液
B:加入10mL 0.01mol•L﹣1的盐酸溶液
C:加水稀释成100mL
D:加入10mL 的水进行稀释
(2015•菏泽)将一副直角三角尺如图放置,若∠AOD=20°,则∠BOC的大小为( )
I was found I was carried _____ on the earth and fell over.