想请问郭培月老师。 这题本来选了D，回看的时候发现定位错误，重新定位首先锁定了They ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data这句，因为既有 other Pleistocene sites又有 La Brea，但是细看发现是讲similar不是difference。 再重新定位后又锁定第一段Researchers compared the number of tooth fractures in present-day carnivores with tooth fractures in carnivores that lived 36,000 to 10,000 years ago and that were preserved in the Rancho La Brea tar pits in Los Angeles. The breakage frequencies in the extinct species were strikingly higher than those in the present-day species.但是不太确定是不是这里，因为觉得它是在对比present-day的和以前的，不是在比La Brea和其他地方的

想请问郭培月老师。 这题本来选了D，回看的时候发现定位错误，重新定位首先锁定了They ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data这句，因为既有 other Pleistocene sites又有 La Brea，但是细看发现是讲similar不是difference。 再重新定位后又锁定第一段Researchers compared the number of tooth fractures in present-day carnivores with tooth fractures in carnivores that lived 36,000 to 10,000 years ago and that were preserved in the Rancho La Brea tar pits in Los Angeles. The breakage frequencies in the extinct species were strikingly higher than those in the present-day species.但是不太确定是不是这里，因为觉得它是在对比present-day的和以前的，不是在比La Brea和其他地方的