在借贷记账法下,发生额试算平衡的依据是记账规则。 ( )
参考答案:对
He made a mistake, but then he corrected it _____ it got worse.[ ]
A. until
B. when
C. before
D. as
润滑脂一般在滚动轴承装配时加入,每隔()对轴承家一次新德润滑脂。
A.两个月
B.三个月
C.四个月
D.五个月