全国各地中考真题:甘肃省武威市2017年中考生物真题试题(含解析)
2017年武威市中考生物试题及解析一、单项选择题(本大题包括6道题目,每题2分,共12分)1.小李同学用显微镜观察口腔上皮细胞临时玻片标本时,要使视野内看到的细胞形态最大,在下列镜头组合中,应选择A.目镜16x,物镜40xB.目镜16x,物镜10xC.目镜:15x,物镜10xD.目镜5x,物镜10x解析:本题每年都考,显微镜放大倍数=目镜x物镜,倍数越大细胞越大。故选择A2。武威市民勤县是闻名全国的瓜乡,日光充足,盛产“黄河蜜”。下列生产措施中,不利于提高黄河蜜产量的是A.合理密植B.科学灌溉C.人工授粉D.大量施用氮磷钾化肥解析:题目较新颖,前三个答案对光合作用都有用。故选择D3.食物中的蛋...
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