泰罗制
参考答案：
在科学制定工作标准（定额）基础上，按工人完成定额的不同情况实行不同的工资率，该方法即计件奖励制，激励作用强，但不能保障工人的最低工资
Life abroad was not easy for him, and it was several years before he ________ the whole community.
A．had been familiar with
B．got familiar with
C．have been familiar with
D．would be familiar with
小组合作学习的主要流程是小组交流。
