未分类题

根据下面选项，回答题
A．HCO3-相对增多
B．HCO3-相对减少
C．H2CO3相对增多
D．H2CO3相对减少
E．HCO3-，H2CO3均无变化
代谢性酸中毒时（ ）。 查看材料

A.HCO3-相对增多
B.HCO3-相对减少
C.H2CO3相对增多
D.H2CO3相对减少
E.HCO3-，H2CO3均无变化

【参考答案】

B
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单项选择题
听力原文：W: Okay, as an adult, what are some of the ways you've done about trying to become a better reader and writer? M: When I'm walking down the street, I look at things. When I'm sitting on the bus, I might look at the signs and read them. I read a little more now than I used to. I don't always have time to go home and pick up a book and read because I have three kids. W: Right. So that's something you think would make you a better reader, but you don't usually have time to do it. M: Oh yeah. If you could pick up a book every day, it would make you a better reader. W: How do you know? M: Oh I know that for a fact. Because when I just had one child, I was able to do that. One child is a big difference than three. I was able to do more for myself than I am now. Like Mr. Mark, another learner in the program, for instance, is much more advanced than I am. That's because he can pick up a book every day and practice every day. His wife helps him. I don't have anybody to help me, and when I get stuck on something, I get fed up. I put it down and try to begin the next day. But I may not have the time for the next day. When my kids go to sleep, I'm ready to go to sleep. Or I might just want to sit up, look at a picture and relax my mind. It's real difficult. W: So the difference between you and Mr. Mark is that he has more time and he has someone to help him? M: Right, right. W: Anything else that makes it different for him? M: He doesn't have as much responsibilities as I do. He's older. I believe he's still working, but nothing like a full-time job. He doesn't have as many worries as I do. He has been where I'm trying to get. He may own his home already. And that's a big difference. W: How do you know a book is harder or easier? M: By the words. An easier book, I maybe could break down so many words in that book. A harder one, I can't break down maybe one or two. Then I know it's harder. W: Does anything else make a book harder or easier? M: I think it's like reading words where the print is not so fine. I hate books with small letters. It scares me. They are written down real small. But when they are bigger, and bigger letters I don't mean like capitals—I mean bigger letters. You can see more easily. I can see them better. I could go through it like that and see the words that I know. When they are in small print, I can't figure out the ones. I just have to read it to find if I can read it or not. Questions:11. On which of the following topics is the man being interviewed? 12.Why does the interviewee not have time to put up a book to read at home? 13.The interviewee said several differences between him and Mr. Mark. Which of the following is NOT one of them? 14.How does the interviewee know the book is easier or harder? 15.According to the interviewee, does anything else make a book harder or easier?(31)A．Ways to become a better reader and writer.B．Ways to read a harder or easier hook.C．Ways to print a good book.D．Ways to read a book.
A.Why
B.The
C.How
D.According
E.Ways
F.
B．Ways
G.
C．Ways
H.
D．Ways
I.
单项选择题
Lilly has to get up early and arrive in good time because（）.

A．she has to study all the poses
B．it takes time for her to get prepared
C．the photographers insist on punctuality
D．no one can do anything until she arrives
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