物流经营者在物流质量方面追求的最高目标是（）。
A.外在质量
B.内在质量
C.物流服务过程质量
D.物流服务形象质量
参考答案：C
A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.
A.using a 2-1/2 inch hose
B.there is an outlet for the smoke and heat
C.the fire is totally contained by the ship's structure
D.at least two fog streams can be used
使用锉刀时不能来回锉。
