题目

“海阔凭鱼跃，天高任鸟飞”．鱼跃鸟飞是因为它们都有与其功能相适应的结构．下列论证错误的是（ ） A . 黑麦的根部有多达150亿条根毛，有利于根吸收水和无机盐 B . 肺泡壁仅由一层上皮细胞构成，有利于肺进行气体交换 C . 小肠有肠液、胰液和胆汁等多种消化液，有利于小肠吸收营养物质 D . 肾小球是毛细血管球，有利于肾形成原尿根据所听到的答语选择适当问句。(    )1. A. How are you?          B. Hello!          C. What's your name?(    )2. A. How many gifts?          B. How many balloons?          C. How old are you?(    )3. A. Where is your hand?           B. What's in the bag?           C. Nice to meet you.(    )4. A. Are you ten?          B. Who are you?          C. What can you see?(    )5. A. Where is your nose?          B. Thank you.          C. May I have a look?(    ) 6. A. Can I have some chicken?           B. Where is your mouth?           C. What do you like?