七年级上册生物试卷
以下是小编为大家准备的七年级上册生物试卷,本文共11篇,仅供参考,欢迎大家阅读。 七年级上册生物模拟试卷 要多练习,知道自己的不足,对大家的学习有所帮助,详细内容请看下文七年级上册生物2份期末模拟试卷。 实验探究:本大题11分,每空1分。 38、将一盆经黑暗处理后的银边天竺葵的一个叶片,用两个圆形黑纸片从叶片的上下两面遮盖起来(如图),然后放在阳光下照射几小时。取下叶片,用酒精脱色后再漂洗。请回答
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