2020-2021学年七年级下册生物冀少版同步课时作业（9）呼吸
※题型：单选题※知识点：单选题※试题难度：中等<br>下列结构中既属于消化系统又属于呼吸系统的是( )<br>A.咽 B.喉 C.口腔 D.鼻腔<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/405afeef7b75432eaa3e6ed6d877c12d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/19df107dbe92480f94ee369fe708bc86/E9ECE0A4D64D9D0B7CFA34A7B04E52A3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>人的鼻不具有的功能是( )<br>A.气体进出肺的通道<br>B.气体交换的场所<br>C.温暖、湿润、清洁进入肺的空气<br>D.感受气味的刺激<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/5d0d8155bffd4826956d5c2416bc3747/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/f9be8b105dfc49fbb13d267d8166e4e9/50A615F45F51D1B671C0FF65728C0979.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>肺的下列哪项结构特点与肺进行气体交换的功能无关( )<br>A.肺位于胸腔内<br>B.肺泡壁薄,仅由单层细胞构成<br>C.肺泡数目多,面积大<br>D.肺泡外表面有缠绕着丰富的毛细血管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5c3c19e387db414b8173a1879b2c9aa9/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/30ec5b0ffbd241ef9407f8502bcfef44/D246AD3EA2A659033B3D535EAC997F80.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>肺活量是指( )<br>A.一分钟内肺呼出的气体量<br>B.一分钟内肺吸进的气体量<br>C.尽力吸气后肺内最大气体量<br>D.尽力吸气后再尽力呼气所呼出的气体量<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/43ae29b7afbb40539a08814640416c5d/B4A95E0049EF7D88C3ABD6FDD51A35AE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3178cadb9f224130ade6709144bdfd94/A88064EB3FB0CA573BD16323A6524650.png"><br><br>
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