为了减少或消除粗纱前、后排纱条应捻陷而引起的意外伸长及前、后排伸长差异，在粗纱机上采用（）以降低细纱的重量不匀。
参考答案：假捻
The teacher suggested that the dictionary ______ at once .
A．be referred to be bought
B．be referred to being bought
C．referred to being bought
D．referred to be bought
我国利润表采用的是( )结构。
A．复杂式
B．简单式
C．单步式
D．多步式
