2020-2021学年生物冀少版七年级下册随堂检测（1）食物
※题型：单选题※知识点：单选题※试题难度：中等<br>构成人体细胞的主要成分中含量最多的是( )<br>A.水 B.蛋白质 C.无机盐 D.维生素<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a10a48d7fa1449dbb2622ad6fb68f897/5EB37C218D6D19EB98E791A4205997A8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d7c62bd920934e2db70869d705a93462/39E7A007D90FEE5CDC843CA18240839A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>小芳的爸爸最近皮肤干燥,夜晚总是看不清东西,可能缺乏下列哪种维生素( )<br>A.维生素D B.维生素C C.维生素B<sub>1</sub> D.维生素A<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/1b2a61573f64479cb9a3ecea550e7868/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/0752c051798c46279e6d2b4377ae6eb5/0D48F67821DDB452A8D42FEF0CA8E838.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>猕猴桃含有丰富的营养,其中对预防牙龈出血起主要作用的是( )<br>A.维生素A B.维生素B C.维生素C D.维生素D<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/29bee50bd6944fbd906d47c65a9ea017/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>每日三餐所摄入的总热量,早、中、晚餐应有合适的比例。早、中、晚餐合适的比例应是( )<br>A.20%、50%、30% B.30%、40%、30%<br>C.10%、60%、30% D.20%、40%、40%<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ad2a0d95a85c45e6a4810a991e824c29/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f0478d08fbb74df8909b1c45429bbf26/AD061E40DF448F104AE19A6C62AEF47E.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>观察下面三幅图片,回答相关问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/6/17/F49EB1521F39326208D1C04195571904.png"><br>1.A中含较多,B中含较多,C中含较多。<br>2.这三类物质都是构成的重要成分,并且能为生命活动提供。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5a3f518852924ace89d5278eb10c283a/0376D4AEB0138415A8EF1DA9178ECEF2.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/acb22ea194f34d3cae9f6a174a7d5cd1/148A9548E4358A8EBCECABE79EF8D147.png"><br><br>
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