-- Yesterday Suzy fell over and was hurt badly while she a snowball.
-- I'm sorry to hear that.
A:made
B:was making
C:makes
D:is making
如图所示,保持电源电压不变,当开关S由断开到闭合时,下列说法正确的是( )
关于我国地理位置和疆域的叙述,正确的是( )