A:take u
B:carry u
C:pick u
D:make u
电熨斗通电一段时间后,熨斗面很烫,而连接电熨斗的导线却不怎么热,这是因为
What can I ____ (do) for you?
12-9=____8+9=____14-9=____18-9=____
6+9=____11-9=____9+9=____2+9=____