下列气体中，有毒的是  （）

    When I was ten years old I went to the USA to visit some family friends. I noticed something funny about the way everyone spoke English.

    One moment! I remember very clearly was at the beginning of the holiday, when my friend asked me if I wanted to order “French fries”. I couldn't imagine what they were. She was amazed that I had never tried them and she ordered a portion for us to share. When the waiter brought us some chips, I asked her where the French fries were. She pointed at the plate of chips! Later that week she said she was going to buy some “chips” from the supermarket. She came out with a packet of crisps（薯片）! How come?

    During that holiday we were also offered “biscuits” with our lunch. This was a very strange idea to me, because in England biscuits are sweet. I later realized that “biscuits” in America are salty snacks. What we call “biscuits', they call “cookies”.

    I was also embarrassed when a stranger told me she liked my “pants”. I wondered how she could see them! My mum then told me that they call “pants” what we call “trousers”, the outer clothing that you wear on your legs instead of inside clothing!

    I was disgusted when I saw an “eggplant” pizza on the menu in a restaurant. But I was puzzled how eggs can grow on plants. My dad ordered this pizza and it was covered in aubergines（茄子）. “They call aubergines 'eggplant' in America!” he told me.

    I think part of the excitement of learning a language is learning about the differences that exist in how it is spoken in different places.

如图中a表示人体的膈肌，据此判断甲、乙两人所处的呼吸运动过程分别是（　　）

ABCDE5种食物（各100克）的部分成分如下表所示，请据表回答问题：（“…”表示未检出）

（1）人体内血红蛋白过少时会引起贫血，你认为这种贫血患者可摄取表中的食物____（填写字母）来缓解贫血症状。
（２）健康人一次大量摄取食物Ｄ后，则血糖含量会明显升高，但由于____ （激素）的分泌，血糖浓度又会降到正常水平。
（３）食物中的蛋白质最终在人体消化道的____ 中被消化成____ 吸收进入血液，通过血液循环送到组织细胞，此过程可用下图表示，请补充完整。

①____ ，②____  ，③____  ，④____ 。