13.Whatdoyouthinkofhisproposalthatimprovementsintheoldtypeofvacuumcleaner.A)bemadeB)willbemadeC)wouldbemadeD)willhavetobemade
13. What do you think of his proposal that improvements ________ in the old type of vacuum cleaner.
A) be made B) will be made C) would be made D) will have to be made
A
1.1,2,3,5,7,(D),13.A.12B.9C.11D.102.-1/2,4/3,-9/4 2020-04-07 …
已知函数f(x)=ax,0<x≤1logax,x>1(a>0且a≠1),若f(3a2)>f(1-2 2020-05-13 …
一道概率题1.x1+x2+x3+x4=10的非负整数解个数A(13,13)/A(3,3)*A(10 2020-05-17 …
试题(13)利用有线电视总线式同轴电缆,将用户接入网络的技术是(13)。(13)A.PSTN接入 B 2020-05-26 …
(2X+Y)^2-7(2X+Y)-18(X^2-5X)^2-2(X^2-5X)-24还有(X^2- 2020-06-02 …
A(12/13,5/13)或(—12/13,—5/13)B(±12/13,±5/13)A和B有什么 2020-06-06 …
执行表达式a=12,a=a+13,a+20后a的值为().A.45B.12C.25D.13 2020-06-07 …
10、一本书78页,小明每天看x页,看了4天,还剩()页没看,当x=18时,还剩()页.二、相信你 2020-06-12 …
a^13=a(mod78),为什么,证明a^13=a(mod78),a为整数 2020-07-09 …
找规律例:123(a=n)2468(a=2n)7777777777(a=?)202020(a=?)- 2020-11-27 …