能降火坚阴的味是 A．淡味 B．苦味 C．酸味 D．咸味 E．辛味

设集合A={1，x，2}，集合B={1，x²}，且A∪B=A，则这样x的不同值的个数是（　　）

A．1

B．2

C．3

D．4

土壤缓冲容量

摩尔吸光系数的单位为molcm/L

So we have focused on strategic areas where we can make the biggest impact on agricultural change that stretch from the farm to the market to the table and keep people nourished and productive, health systems that help people spend their days working rather than sick or dying, opportunities for women and girls that allow them to contribute to economic and social progress.

关于华法林的描述错误的是（）

A.口服无效，体内外均有抗凝作用

B.作用持续时间较长

C.起效比肝素慢

D.与抗生素合用，作用增强

E.血浆蛋白结合率高