患者,女,57岁。咳喘多年,近来咳痰色黄黏稠,舌质红,苔黄燥。治疗应首选的药物是()。
A.紫苏子
B.枇杷叶
C.旋覆花
D.桑白皮
E.天南星
参考答案:D
下列做法中,不利于保护金属资源的是
A.回收易拉罐
B.寻找金属代用品
C.防止金属的腐蚀
D.过度开采金属矿物
A security market in which all the bids and asks for a stock are gathered to arrive at a single price that satisfies most of the orders is best described as a:()
A. Call market.
B. Dealer market.
C. Continuous market.