B)听录音,选择正确的应答。(听两遍)()1.A.Yeshedid.B.Hismother.C.Atseveno’clock.)2.A.NoIcan't.B.ldon'twantto.C.YesMum.HIdoit.()3.A.Yestheydid.B.Theysatquietly.C.They
B) 听录音,选择正确的应答。(听两遍)
( ) 1. A. Yes he did. B. His mother.
C. At seven o’clock.
) 2. A. No I can't. B. ldon'twantto.
C. Yes Mum. HI do it.
( ) 3. A. Yes they did. B. They sat quietly.
C. They’re having a lesson.
( ) 4. A. Look out for cars. B. Look at the traffic lights.
C. Play football on the road.
) 5. A. Cereal bread eggs and sausages.
B. Porridge and streamed buns.
C. Meat and vegetables.
分解因式(a-b-c)(a+b-c)-(b-c-a)(b+c-a)正确答案是这个:(a+b-c)( 2020-05-17 …
求教分析一道代数式值题的解答过程.题目是这样的:已知(b+c)/a=(a+c)/b=(a+b)/c 2020-05-20 …
求数学高手解答一道令我十分纠结的题已知a,b,c都大于0小于1.求证:(1-a)b,(1-b)c, 2020-06-17 …
数学概率论,一杠表示对立事件求A(BC一杠∪C),因为C一杠∪C=全集S,所以B∩S=B,数学概率 2020-07-08 …
英语翻译A:DoyouhaveEnglishonMonday?B:Yes,ldo.lhaveEng 2020-07-21 …
微积分计算a,b,c满足ac-b^2=1求:微分方程y'(x)=a[y(x)]^2+2by(x)+ 2020-08-02 …
(a-b)(b-c)(c-a)=?化简大神们帮帮忙有一题三阶行列式我算的结果是bc^2+ca^2+ 2020-08-03 …
theostrichcanrunfastestthananyotherbirdintheworld哪 2020-10-29 …
1.请选出合法的C语言赋值语句()(正确答案:C)A)a=7+b+c=a+7B)a=7+b++=a+ 2020-11-01 …
紧急求助两小时内急跪求答案.问题∶在三角形ABC中,角A,B,C所对边分别为a,b,c,且b的平方+ 2020-12-19 …