用线绳装订档案,采用三孔一线的装订法,使文件材料()。
A、上齐、下齐
B、下齐、左齐
C、下齐、右齐
D、上齐、左齐、右齐
参考答案:B
The girl arranged to have piano lessons at the training centre with her sister _____ she would stay for an hour. [ ]
A. where
B. who
C. which
D. what
产值成本法是指按()的一定比例确定产品成本的一种方法。
A、利润
B、工业总产值
C、成本
D、售价