A.Soundswonderful.B.Whydoyoulikecollectingstamps?C.Howlonghaveyoubeencollectingstamps?D.Aretheyallyours?E.Whendidyoustartcollectingthem?F.Howluckyyouwere!G.Howmucharethey?A:
A. Sounds wonderful.
B. Why do you like collecting stamps?
C. How long have you been collecting stamps?
D. Are they all yours?
E. When did you start collecting them?
F. How lucky you were!
G. How much are they?
A: Wow what beautiful stamps!1
B: Yes. They are all mine.
A: Really? 2
B: Let me see ... Er since I was five years old.
A: Since you were five years old?
B: Yes. My parents gave me the first album as a present on my fifth birthday.
A : 3 And how many stamps have you collected so far?
B: I’ve collected about 1 000.
A: So many!4
B: Because they are interesting and beautiful.Besides they also give me much knowledge.
A: 5 I think I will also collect stamps. Can we collect them together?
B: Of course.
1. 2. 3.
4. 5.
802.11n/b/g/a是什么意思?802.11n/b/g/a的n,b,g,a,n/b/g/a, 2020-04-09 …
焓变条件是不做非体积功,而做了非体积功,何来焓变化学反应A(g)+B(g)=2C(g),A、B 、 2020-05-17 …
设f(x)、g(x)是在闭区间a,b上的两个连续函数,而f(a)>g(a),f(b) 2020-06-18 …
A.Soundswonderful.B.Whydoyoulikecollectingstamps? 2020-07-13 …
设f(x),g(x)在[a,b]上连续,在(a,b)内可导,且g(x)不等于0,f(a)g(b)= 2020-07-21 …
设函数fx,gx在(a,b)上连续且可导,在(a,.b〉内二介可导,且存在相等的最大值,f(a)=g 2020-11-03 …
已知定义域为区间[a,b]的函数f(x),其图象是一条连续不断地曲线,且满足下列条件:①f(x)的值 2021-02-13 …
已知f(x)是定义在[a,b]上的函数,其图象是一条连续的曲线,且满足下列条件:①f(x)的值域为G 2021-02-13 …
已知f(x)是定义在[a,b]上的函数,其图象是一条连续不断的曲线,且满足下列条件:①f(x)的值域 2021-02-13 …
已知f(x)是定义在[a,b]上的函数,其图象是一条连续的曲线,且满足下列条件:①f(x)的值域为G 2021-02-13 …