什么是粒级煤?
参考答案:
煤经过筛选或洗选生产的,粒度下限大于6mm的产品,其中粒度介于6-13mm的煤,称为粒煤,其他则称为块煤。
- What about my career prospects? Is my work contract __________?
- I think so. If we’re satisfied with you, you can become our permanent worker.
A.qualified
B.temporary
C.renewable
D.promising
肺炎喘嗽风热闭肺重证首选是()
A.羚角钩藤汤
B.三拗汤合葱豉汤
C.麻杏石甘汤
D.葶苈大枣泻肺汤合五虎汤
E.沙参麦冬汤