8506900读作：八千五百万零六万九千．______．（判断对错）
8506900，读作：八百五十万六千九百．
故答案为：×．
The UN has already____the use of chemical weapons during warfare, since they are too destructive. [ ]
A. approved
B. allowed
C. banned
D. protected
药物在血浆中与血浆蛋白结合后：
A．药物作用增强B．药物代谢加快C．药物转运加快D．药物排泄加快E．暂时失去药理活性
