Hi!I'mJackSmith.I'mtwelveyearsold.Ihaveasister.HernameisMarySmith.Sheistenyearsold.Hello!I'mZhangMingming.Mingming|ismyfirstnameandZhangismylastname.I'maChineseboysomynameisdifferent(不同的)fro
Hi!I'm Jack Smith. I'm twelve years old. I have a sister. Her name is Mary Smith. She is ten years old.
Hello!I'm Zhang Mingming. Mingming | is my first name and Zhang is my last name. I'm a Chinese boy so my name is different(不同的) from an Eng?lish name.
My first name is Bill and my last name is Green. You can call
(称... ) me Bill or Bill Green. But you can't call mc Green Bill.
Hi!My name is Jim Brown. I'm thirteen years old. I have a brother. His name is Danny. He is thirteen too. We are twins.
) 26. Mary Smith is .
A. Bill's sister
B. Jims brother
C. Jack's sister
D. Zhang Mingming's brother
( ) 27. The name " ”is different from the other (其他的) names.
A. Jim Brown
B. Zhang Mingming
C. Bill Green
D. Jack Smith
( ) 28. is Danny's last name.
A. Brown B. Smith
C. Green D. Zhang
( ) 29. The name " ”is a wrong (错误的) name.
A. Bill Green
B. Mary Smith
C. Smith Jack
D. Zhang Mingming
( ) 30. The word "twins" means .
A. 好朋友 B. 同班同学
C. 笔友 D. 双胞胎
26—30 CBACD
设A为n阶矩阵,证明:R(A+I)+R(A-I)>=n已知R(A)=R(kA),k≠0;R(A+B 2020-05-14 …
怎么用C语言编写杨辉三角#include"stdafx.h"intmain(intargc,cha 2020-05-14 …
复数计算:(1)i+i^2+i^3+.+i^100(2)i^10+i^20+i^30+.+i^80 2020-05-21 …
Hi!I'mJackSmith.I'mtwelveyearsold.Ihaveasister.He 2020-06-09 …
Hi!I'mJackSmith.I'mtwelveyearsold.Ihaveasister.He 2020-06-09 …
i的i次方等于多少,写成x+yi的形式如题:i^i=?写成x+yi的形式,其中要求x和y都是实数. 2020-06-12 …
一直z=(2+i)(1+1/i){i为虚数单位}则复数Z在复平面上所对应的点位于几象限我算的是3+ 2020-07-03 …
P=A(1+i)^-1+A(1+i)^-2+A(i+i)^-3+……A(1+i)^-n(1)将两边 2020-07-25 …
已知复数ω满足ω-4=(3-2ω)i(i为虚数单位),z=5/ω+|z-2|,若z的平方根为a=b 2020-08-02 …
一道挺难的数学题i*i=-1则x*x=-1可变为x=+i或-ii还具有以下性质:i=ii*i=-1i 2020-11-01 …