如图,AD是△ABC的角平分线,DF⊥AB,垂足为F,DE=DG,△ADG和△AED的面积分别为50和38,则△EDF的面积为( )
A:8
B:12
C:4
D:6
下列哪项不是节肢动物的特征( )
某市电脑上网每月向用户收取费用y(元)与上网时间x(时)的函数关系如图,当客户每月上网121时,需付费( )元.
I had a strong desire to reach in and play with the toy, but ________ thankfully by the shop window.