在国际航空货物运输中,活动物的运输也可以办理运费到付。()
参考答案:错
根据句意,用适当的人称代词填空。
1. Hi, Amy! Do like chatting with your friends?
2. This is Tom. is a new student.
3. My sister likes reading. has a lot of books.
4. My name is Li Ming. live in Chengdu.
5. I have two good friends at school. are in Class Two, too.
下图为物质出入细胞膜的示意图,请据图回答:
果该图表示肝细胞的细胞膜,在a~e五种物质进出细胞方式中,表示O2运输的是(),表示K+运输的是()。(用字母回答)