某工种某一等级的工人或工人小组在合理的劳动组织等施工条件下,完成单位合格产品所必需消耗的工作时间,被称为()。
A.时间定额
B.产量定额
C.工期定额
D.费用定额
参考答案:A
The summer holiday is coming. We’re going to have _______ holiday.
A. a two-months B. a two-month C. two months
设
,则
=______.