单项选择题
A.这份合同明显违反了新的协议，尤其是违反了国际的法律。 B.这份合同清楚地违反了旧的协议，并违反了国际上的法律。 C.这份合同清楚地违背了最初的协议，尤其国际法。 D.这份合同显然违反了原来的协议，尤其是违反了国际法。
A．smoking in forests B．changing the attitudes and behavior of millions of people C．the chief causes of forest fires and their prevention D．advances in knowledge of fire weather
A．how students remember English vocabulary by short-term memory B．how students learn English vocabulary C．how to develop students’ ability in English D．how long information in short-term memory is kept