在一定的生产条件下,以最少的()和最低的成本费用,按生产计划的规定,生产出合格的产品是制订工艺规程应遵循的原则。
A、电力消耗
B、劳动消耗
C、材料消耗
D、物资消耗
参考答案:B
根据句意及首字母提示补全句子。
1. Sydney is the biggest ciry in A_______.
2. Animals are our friends. Please be f_______ to them.
3. They often go to the r_______ next to the park to have meals..
4. Do you know the girl w_______long black hair under the tree?
5. They are a_______ here next Monday, so we can meet them soon.
用手工砂纸法除旧漆时,选用砂纸的粒度一般为()#。
A.40
B.60
C.80