禁毒经费主要来源于（）。
A、戒毒所收入
B、政府财政预算
C、查禁毒资返还
D、行政罚款
参考答案：B
It’s reported that ________ young ____ to be rebellious against ____ parents’ instructions nowadays.
A．/, tends, his
B．the , tend, their
C．the , tend, his
D．a, tend, his
什么是剧毒介质和有毒介质？甲醇属于哪一类？
