Fiveofthe12bronzeanimalheadstoChinawithsevenotheronesstillmissing.A.returnedB.hadreturnedC.havebeenreturnedD.havereturned
Five of the 12 bronze animal heads ______ to China with seven other ones still missing.
A. returned B. had returned
C. have been returned D. have returned
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 …
7.-_you _the book to the library?-Yes.I_it the da 2020-05-16 …
(a+1)(a^2+1)(a^4+1)(a^8+1)(a^16+1)=(a-1)[(a+1)(a^ 2020-05-22 …
AllbooksaretothelibrarybeforeFriday.选择：A.returned 2020-07-09 …
Fiveofthe12bronzeanimalheadstoChinawithsevenother 2020-07-17 …
·求解一道英语题,并说明return、getback和returnback词义及用法区别.·When 2020-12-10 …
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 …