Formanyyears,peopleelectricears.However,makingthemhasbeenmoredifficultthanpredicted.()A.haddreamedofB.havedreamedofC.dreamedofD.dreamof
For many years,people __ electric ears.However,making them has been more difficult than predicted.( )
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of
For many years,people __ electric ears.However,making them has been more difficult than predicted.( )
A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of
排列字母 组成单词 写出中文意思u s n e r e d s t n i t 2020-05-14 …
用这些英文字母拼词这些英文字母打乱了顺序.一个题目一个词.第一题:r,c,t,a,e,s,r第二题 2020-05-16 …
u,i,n,c,o,s可以拼成什么单词?还有,o,s,l,h,u,d还有,t,p.s.n.e.r, 2020-05-23 …
将字母组成单词,并译成汉语1.m,e,r,m,u,s,汉语2.u,l,t,e,c,u,r,汉语3. 2020-06-04 …
设y=x^u,求y^n=?这是书上的解法是y'=ux^(u-1),y''=u(u-1)x^(u-2 2020-06-18 …
下列词语中,加点的字读音全部都正确的一组是()A.牛虻(ménɡ)氓隶(ménɡ)魍魉(wǎnɡ) 2020-07-03 …
1.r,h,n,y,e2.c,e,s,c,n,i,e3.p,1,a,p,e4.r,a,t5.p,o 2020-07-09 …
(1)已知随即变量X=U+2V和Y=U-2V不相关,下列哪个正确()(A)N(0,1),N(0,1 2020-08-01 …
多元线性回归Y=Bx+u①E(u)=0②Var(u)=E(u^2)=σ^2,Cov(u,u)=0③C 2020-12-14 …
英语向高人求教!写几句话.每句开头的第一个字母分别是“L,i,U,F,E,i,F,E,i,w,o,a 2020-12-15 …