食品加工人员进入食品生产场所应注意个人卫生，防止污染食品，下列哪种行为是正确的。（）
B
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EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Weaimtoensurethatallcandidatesaretreatedfairlyandthattheyhaveequal______toemploymentopportunities．
Seniormembersofthestaffcompetedeagerly________thepositionofsalesmanagerinthecompany.
In1991，whilet11eeconomiesofindustrializedcountriesmetaneconomic_____，theeconomiesofdevelopingcountriesweregrowingveryfast．