非特殊区域食品废弃物粉碎后，其粉径不大于（），可在最近陆地3海里外投弃海中。
A、25cm
B、25mm
C、2.5mm
参考答案：B
nobody has seen him, everyone has heard of him. He is really famous, isn’t he?[ ]
A. Because
B.So
C. Although
D. But
（）是为运送乘客而计划的电梯。
A、乘客电梯
B、载货电梯
C、客货电梯
D、病床电梯
