（）较早阐述了工业事故发生的因果连锁理论。
A.亚当斯
B.博德
C.詹巴斗
D.海因里希
参考答案：D
The police ____the murderer everywhere when he suddenly appeared in a theatre.
A．is searching for
B．were searching for
C．are searching for
D．were searching
《再别康桥》一诗有什么艺术风格？
