[填空题]客运组织时应遵循（ ）原则，在客控结束后及时搬走站台门处的伸缩栏杆、铁马。

Few insects have inspired as much fear and hatred as the diminutive fire ants, less than half an inch long but living in colonies of more than 250,000 others. Everyone in the southern United States gets to know fire ants sooner or later by painful experience. Fire ants live in large earthen mounds and are true social insects--that means they have a caste system ( division of labor), with a specialized caste that lays eggs (queen) and a worker caste of sterile females. There are several reasons that they are considered pests. About 60% of people living in areas where fire ants occur are stung every year. Of these, about 1% have some degree of allergic reaction ( called anaphylaxis) to the sting. Their large mounds are unsightly and can damage mowing equipment. Fire ants sometimes enter electrical and mechanical equipment and can short out switches or chew through insulation. Finally. as fire ants move into new areas, they reduce diversity of native ants and prey on larger animals
A. predatory activities.
B. temporal distribution.
C. spreading speed.
D. geographical distribution.

A--a registered trademark B--after-sale services
C--certification system D--copyright piracy
E--domestic products F--end product
G--gross weight H--life of use
I--owner of copyright J--pirated copyright
K--potent legislation L--processing requirements
M--product coverage N--transfer of technology
O--product quality guarantee P--unfinished products

设置沈蝶为“702账套”的账套主管。