常用手工锯条的规格有（）齿，（）齿和（）齿三种规格。
A.大.中.小
B.长.中.短
C.粗.中.细
参考答案：C
Cathy is taking notes of the grammatical rules in class at Sunshine School,where she_______English for a year.
A．studies
B．studied
C．is studying
D．has been studying
油加热______是将食物中水分脱去，或使原料上色、增香、变脆的方法。
A．预熟处理法
B．高温油处理法
C．低温油处理法
D．滑油法
