石油的蒸汽压愈高，说明油品愈（）汽化。
参考答案：容易
25. The book ______forty maps, ______three of Great Britain.
A．contains; includes
B．is containing; including
C．includes; contains
D．contains; including
药物制剂的鉴别、检查、含量测定等方法应具备的主要条件为
A．代表性B．科学性C．真实性D．专属性E．耐用性
