世界卫生组织（WHO）于（）年第55届年会时召开过有关“健康风险”的部长级圆桌会议。
A、2000
B、2001
C、2002
D、2003
参考答案：C
_____the equipment before you leave, or you will be punished by our chemistry teacher. [ ]
A. Remember cleaning
B. Remember to clean
C. To remember to clean
D. To remember cleaning
振冲桩处理范围如何确定？
