铺设刮板输送机封底中部槽时，每隔10块应铺设一块有活动窗口的溜槽.（）
参考答案：错
平面倾斜投影面，投影形状改变。
She had an advantage over others because she had a good ________ of both Chinese and English.
A．command
B．feeling
C．ability
D．program
