Didyouknow?A.whohewaslookingafterB.whowashelookingforC,whoheislookingafterD.whoheislookingafterCouldyoutellme?A.whenwilltheyleaveBeijingB.whenwouldtheyleaveBeijingC,whentheywillleaveBeijingD.whendidth

题目详情

Did you know ____?A.who he was looking after B.who was he looking for C,who he is looking after D.who he is looking afterCould you tell me____?A.when will they leave Beijing B.when would they leave Beijing C,when they will leave Beijing D.when did they leave Beijing

▼优质解答

答案和解析

A 主句过去,从句过去,语序陈述
C主句一般现在,从句不限,但必须用陈述

看了 Didyouknow?A.w...的网友还看了以下：

1.如果a≠0,p是正整数,那么下列各式中错误的是：（）A.a^-p=1/a^pB.a^-p=（1/ 　2020-03-30 …

求出下列各式中的字母a的取值范围：1.a＜a/22.a＜1/a3.|a|/a=-14.1/a＞a＞0 　2020-03-30 …

1.a>0且a≠1①㏒a(1)+㏒a(a)②㏒a(a²)-aˆ㏒a(3)2.若6ˆa=8,求㏒6(4 　2020-03-30 …

a=xa+a=a+x2a=a+x2a-2x=a+x-2x2（a-x）=a-x2=1到底a=xa+a= 　2020-03-30 …

1.a≠0,b≠0,则a/|a|＋b/|b|的不同取值的个数为（）A.3B.2C.1D.02.若|x 　2020-03-31 …

1.判断a、b、c能否构成三角形的三条边长的条件是（）.选项:a、a>0&&b>0&&c>0b、a+ 　2020-03-31 …

设函数f(x)在x=a处二阶可导,又limf'(x)/(x-a)=-1,则()A.x=a是f(x设函　2020-03-31 …

(a+1)(a^2+1)(a^4+1)(a^8+1)(a^16+1)=(a-1)[(a+1)(a^ 　2020-05-22 …

Didyouknow?A.whohewaslookingafterB.whowashelookin 　2020-06-29 …

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 …