— Of course.
A:her
B:your
C:yours
D:his
下列加线的词,意义相同的一项是 ( )
向下列各物质的水溶液中滴加稀硫酸或氯化镁溶液时,均有白色沉淀生成的是( )
(l)图1中OA′是入射光线AO的折射光线,请在图中画出入射光线BO的折射光线OB′的大致位置.
(2)请在图2中标出通电后螺线管和小磁针的N极.
I went to the classroom just now, But I didn't see in it.