Policemen think that where there is violence , drugs with damaging effects on kids are always it．
A. beyond
B. before
C. behind
D. besides
网友回答
A. beyond
B. before
(答案→)C. behind
D. besides
解析：这题考查介词：A．beyond超出，B．before 在…前面，C．behind在…后面，D．besides除了，句意是：经常认为在有暴力的地方，对孩子有毁灭性影响的毒品就紧随其后。选C。