A:Goodmorning!1.B:YesIwanttojointhechessclub.A:Good2.B:David.A:3.B:I'mtwelve.A:4.B:Mytelephonenumberis435-201.A:5B:Yesalittle.A:Hereisacardpleasefillitout.B:Thankyou.A
A: Good morning! 1.
B: Yes I want to join the chess club.
A: Good 2.
B: David.
A: 3.
B: I'm twelve.
A : 4 .
B: My telephone number is 435-201.
A: 5
B: Yes a little.
A: Here is a card please fill it out.
B: Thank you.
A: You're welcome.
A. What's your name?
B. How can we contact you?
C. Can you play chess?
D. I can play chess.
E. How old are you?
F. What can you do?
G. Can I help you?
1 〜5 GAEBC
设a=(√5-1)/2,求(a^5+a^4-2a^3-a^2-a+2)/a^3-a∵2a=√5-1 2020-04-05 …
三阶实对称矩阵,R(A)=2,A^2+2A=0,求特征值.都得到a(a+2)=0.为什么得到a=0 2020-04-13 …
集合A={x|x=(a^2-2a+1)/(a-1),a属于整数,a不等于1},……集合A={x|x 2020-05-13 …
线性代数题:设A为n阶方阵,A*是A的伴随矩阵,如果/A/=a≠0,则/A*/=()设A为n阶方阵 2020-05-15 …
数集A满足条件:若a∈A,a≠1,则1/(1+a)∈A (1)若2∈A,则在A中还有两个元素是什么 2020-05-15 …
已知集合A={a+2,(a+1)²,a²+3a+3},若1∈A,求实数a的值?已知集合A={a+2 2020-05-15 …
(a+1)(a^2+1)(a^4+1)(a^8+1)(a^16+1)=(a-1)[(a+1)(a^ 2020-05-22 …
一、已知数集M满足条件:若a∈M,则(1+a)/(1-a)∈M(a≠0,a≠±1)(1)若3∈M, 2020-07-30 …
递回关系式的运算公式(数列)以下是推导一个公式"a=a+r(1-p^n)/(1-p)"的过程a=p* 2021-01-13 …
函数f[x]=logaXa大于0,且a不等于1,在2,3上最大值为1,则a=当a大于1时,f(x)图 2021-01-15 …