5.(2014•随州中考)一Whatdoyouusuallyhaveforbreakfast?—IusedtodumplingsbutthesedaysI’musedtobreadandmilk.A.eat;haveB.eating;havingC.eating;haveD.eat;having
5. ( 2014 •随州中考) 一What do you usually have for breakfast?
—I used to dumplings but these days I’m used to bread and milk.
A. eat;have B. eating;having
C. eating;have D. eat;having
英语单词填空(组成单词)1)d.l.e.d.m.i2)l.e.p.o.i.ee3)u.y.g.o. 2020-04-25 …
matlab求微分方程,常数项比如y=dsolve("Du=((a-u-b)*e-u*d)/(e* 2020-05-14 …
关系模式R(U,F),其中U={A,B,C,D,E},F={AC→E,E→D,A→B,B→D}。关系 2020-05-26 …
有U=Ed,E=Q/r^2,可否合并为U=Q/d?其中E是电场强度,k是静电力常量,Q是源电荷的电 2020-06-07 …
e^x^2求导看成f'(u)f(u)=u^2u=e^x------>f'(u)=2u*u'=2e^ 2020-06-12 …
物理自学疑问1.在用公式E=U/d时,U用绝对值带如.但在计算U=E*d时,E的正负需要带入吗?2 2020-06-14 …
用以下英文宇母填在上a,a,a,a,a,a,b,e,e,d,e,e,e,e,e,e,f,g,g用以 2020-06-24 …
设给定关系模式R(U,F)其中U={A,B,C,D,E},F={A→D,E→D,D→B,BC→D, 2020-07-01 …
(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 …
如果知道期望E(X)为u,方差D(X)是&^2,是否可推出X~(U,&^2)?为啥?我想问的是,我知 2020-11-03 …