下列选项中，哪一项是东南亚史书中成书最晚的书籍？（）
A、《爪哇史颂》
B、《爪哇诸王志》
C、《马来纪年》
D、《琉璃宫史》
参考答案：D
The majority of the students in our class ________ satisfied with the condition. [ ]
A. were
B. was
C. had been
D. has been
来源于大肠埃希菌且分子量为540kD的是（）
A.HRP
B.OPD
C.TMB
D.AP
E.β-Gal
