任何人不得将易燃、易爆（）物品带入学生宿舍。
A.易腐蚀
B.有毒
C.放射性
D.易碎
参考答案：A, B, C
— Bob! How is your project? I heard you started it last Friday, right?
— Oh! I_____ for it. But I haven't decided when to do it. [ ]
A. have prepared
B. had prepared
C. have been preparing
D. was preparing
对于液化石油气供应基地、气化站、混气站内的生产区内的规划，以下叙述正确的为( )。
A．可随意种植不易造成液化石油气积存的植物B．严禁种植易造成液化石油气积存的植物C．可种植各类植物D．可种植乔木
