约当产量就是将月末在产品数量按照完工程度折算为相当于完工产品的产量。 ( )
参考答案：对
Her composition is well written ___ some spelling mistakes.
A．except
B．besides
C．beside
D．except for
为什么说城市生态学研究对象是城市生态系统，你对此有何看法？
