按照有关规定，学生在宿舍内不得使用（）等燃炉
A.煤油
B.汽油
C.酒精
D.煤气
参考答案：A, B, C, D
The trip from my school to the park _____ about twenty minutes by bike.[ ]
A. takes
B. spends
C. costs
D. uses
包装印刷
