下面是培臻教育小编为大家整理的一篇关于LSAT考试逻辑推理练习题（24）的文章，供大家参考，下面是详细内容。
49.More than a year ago, the city announced that police would crack down on illegally parked cars and that resources would be diverted from writing speeding tickets to ticketing illegally parked cars. But no crackdown has taken place. The police chief claims that resources have had to be diverted from writing speeding tickets to combating the city’s staggeringdrug problem. Yet the police are still writing as many speeding tickets asever. Therefore, the excuse about resources being tied up in fightingdrug-related crime simply is not true.
The conclusion in the passage depends on theassumption that
(A) every member of the police force is qualified to work on combating the city’s drugproblem
(B) drug-related crime is not as serious aproblem for the city as the police chief claims it is
(C) writing speeding tickets should be asimportant a priority for the city as combating drug-related crime
(D) the police could be cracking down onillegally parked cars and combating the drug problem without having to reducewriting speeding tickets
(E) the police cannot continue writing asmany speeding tickets as ever while diverting resources to combatingdrug-related crime
50. Dried grass clippings mixed into garden soilgradually decompose, providing nutrients for beneficial soil bacteria. Thisresults in better-than-average plant growth. Yet mixing fresh grass clippingsinto garden soil usually causes poorer-than-average plant growth.
Which one of the following, if true, mosthelps to explain the difference in plant growth described above?
(A) The number of beneficial soil bacteriaincreases whenever any kind of plant material is mixed into garden soil.
(B) Nutrients released by dried grassclippings are immediately available to beneficial soil bacteria.
(C) Some dried grass clippings retain nutrientsoriginally derived from commercial lawn fertilizers, and thus provideadditional enrichment to the soil.
(D) Fresh grass clippings mixed into soildecompose rapidly, generating high levels of heat that kill beneficial soilbacteria.
(E) When a mix of fresh and dried grassclippings is mixed into garden soil, plant growth often decreases.
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