工时定额与产量定额之间的关系()。
A.互为倒数
B.互成反比
C.可以相互换算
D.不能独立使用
参考答案:A, B, C
He tries to spend as much time as he can ______ Chinese well. [ ]
A. to study
B. studies
C. studying
D. study
车辆每辆车脱轨(),即按1辆计算