—I like art , .
A:too
B:to
C:two
下列食物成分中,不经消化即可被人体吸收的是( )
—Would you like some milk?
—_________.
为判断线圈绕向,可将灵敏电流计G与线圈L连接,如图所示,已知线圈由a端开始绕至b端,当电流从电流计G左端流入时,指针向左偏转.