-Youareveryweak.Youtakemoreexercise.It'sgoodforyou.-YouarerightI'lltakeyouradvice.[]A.mustB.havetoC.oughttoD.may
-You are very weak.You ________ take more exercise.It's good for you.
-You are right I'll take your advice.
A. must
B. have to
C. ought to
D. may
平行四边形ABCD的对角线AC,BD相交于点O.点E是CD的中点,三角形ABD的周长为16cm,平 2020-04-26 …
复变函数中的欧拉公式定义域1、欧拉公式中e^(ix)=cosx+isinx,这里的X是只能取实数不 2020-04-26 …
∵EM是⊙O的切线,怎么推出EB•EC=EM2①?,看题后回答.(2005•温州)如图,已知四边形 2020-05-21 …
A.根据释义,拼写单词.1.costingalotofmoneyx,p,s,i,e,e,e,n,v 2020-06-10 …
main(){unionEXAMPLE{struct{intx,y;}in;inta,b;}e;e 2020-06-12 …
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 …
开口向下的抛物线经过原点O和点E(4,0),顶点P到x轴的距离为4.点A(a,0)是线段OE上一点 2020-07-29 …
如图2-6-26已知以AF为直径的⊙O与以OA为直径的⊙O1内切于A△ADF内接于⊙ODB⊥FA于 2020-07-31 …
(2014•南通模拟)如图,⊙O是等腰三角形ABC的外接圆,AB=AC,延长BC到点D,使得CD=A 2020-11-12 …
2-1设文法G[E]的产生式集为:EàE+T|E-T|TTàT*F|T/F|FFà(E)|i(1)给 2020-11-26 …