题目内容

定额是指在一定的技术和组织条件下，生产（）所消耗的人力、物力、财力和时间等的数量标准。

查看答案

搜索结果不匹配？点我反馈

更多问题

动点和动系互换后，不会改变绝对运动、相对运动与牵连运动。

A. 对
B. 错

There are _______ state-recognized ethnic groups in China.

A. 56
B. 54
C. 52
D. 50

2.The Miao are the fourth largest group by population in China.

A. fifth
B. fourth
C. third
D. sixth

China was the first country in the world to breed fresh water fish.As early as __________years ago,the Chinese began raising fish in ponds.

A. 2,800
B. 3,500
C. 2,500
D. 3,000