假设管道内煤气压力为10KPa(表压),则煤气水封槽内下液管插入液面的深度不得低于()米。
参考答案:1米
Globally, alcohol consumption has increased in recent decades, with all or most of that increase in developing countries. This increase is often occurring in countries with few methods of prevention, control or treatment. The rise in alcohol consumption in developing countries provides ample cause for concern over the possible rise in alcohol related problems in those regions of the world. There is increasing evidence that besides volume of alcohol, the pattern of the drinking is relevant for the health outcomes. Overall, there is a causal relationship between alcohol consumption and more than 60 types of disease and injury. Worldwide alcohol costs 2.5 million death, 3.8% of total. The burden is not equally distributed among all the countries.
在漆刷蘸涂料时,刷毛浸入涂料中的部分应为( ),并将漆刷在涂料桶的内壁来回拍打几下。
A.刷长的1/3~1/2
B.刷长的2/3~1/2
C.毛长的1/3~1/2
D.毛长的2/3~1/2