尿酸生成过多的高尿酸血症的首选药物是()急性痛风性关节炎期首选药物是()
A.苯溴马隆
B.秋水仙碱
C.碳酸氢钠
D.别嘌醇
E.糖皮质激素
参考答案:D,B
Mary got ____ when she was cooking yesterday. [ ]
A. to burn
B. burning
C. to burning
D. burned
说明当中间储仓式制粉系统磨煤机断煤时有哪些现象?