A.空袋
B.铅志
C.绳扣
D.套皮
提示:一位女士在商店为儿子挑选T恤衫,大小和式样都合适,也有喜欢的颜色,但价格太高。
(Shop Assistant = S; Customer = C)
S:Good morning, madam. (1) ?
C:Yes.You see,I&39;m looking for a T-shirt for my son.
S:We have a large variety of T-shirts.What about this one?
C: Oh.I like it. (2) ?
S:Let me see...Size 4,6...Yes,we have size 8.Here you are.
C:Urn,but I don&39;t really like this color. (3) ?
S:Yes, we also have pink, orange, black, blue, and...
C:Good.I think blue is nice. (4) ?
S:It&39;s $ 50.
C:Oh, really? I&39;m afraid (5) .I&39;ll have to think about it.
请帮忙给出每个问题的正确答案和分析,谢谢!
比,面由于人体组织的吸收作用.g(t)的减少奉与g(t)本身成正比.分别在以下几种假设下建立模型,并讨论稳定情况:
(1)人体血液容积V不变。
(2)V随看注入溶液面增加。
(3)由于排泄等因素V的增加有极限值。