下列施工机械折旧法中，折旧的累计额所绘出的图线是直线的是( )。
A．平均年限法B．工作量法C．双倍余额递减法D．年数总和法
参考答案：A
34. The CCTV Spring Festival Evening Party is a big stage, ________ many new actors or actresses are to become famous.
A．where
B．when
C．that
D．Which
怎样做好袋装水泥的现场保管工作？
