在滑动轴承安装中，多支轴承座找同轴度的方法有：（）、（）、（）和假轴找正法。
参考答案：拉钢丝找正法；激光准直仪找正法；转轴找正法
Ten years ago the population of our village was ______ that of theirs.
A．as twice large as
B．twice as large as
C．twice as much as
D．as twice as
自由端纺纱需经过（）、（）、（）、（）四个工艺流程。
