下列药物炒炭用中火的是()
A.大蓟
B.白茅根
C.鸡冠花
D.蒲黄
E.牡丹皮
参考答案:B, C, D, E
With the country’s population increasing to 1.3 billion, many of China’s rivers, including the legendary Yellow River, .
A.is drying up
B.will be drying up
C.had dried up
D.are drying up
()是指颗粒尺寸由大到小连续分级,其中每一级石子都占适当的比列。
A.最大粒径
B.间断级配
C.连续级配
D.单粒级