如图抛物线y等于负x的平方加bx加c经过点a（负1,0），b（3,0）两点，且与y轴交于点c

英语1.2大题是对的吗 My parents often ask me () my studyA.in B.about C.with D.for 两道英语大题,初二的,求解,谢谢 I think he is an honest man ---------------?怎样反问?I dont think he is an honest man --------------? 吴承恩《西游记》里的那只石猴 he is an honest boy改为感叹句 He is a brave man.怎么变感叹句? 英语两个动名词并列时谓语动词用什么例如Doing research and watching TV (take up) a large part of my day 谓语动词用单数还是复数 记叙文必须要写一件具体的事吗?叙事散文算不算记叙文?没有细致的动作描写,只是自己的看法,抒情,等一系列描写事情算记叙文吗?我需要简明一点的解释,最好是大白话,不要专业语言 《一件烦恼的事》根据材料写记叙文材料：明明正在做风筝,爸爸叫明明复习功课,明明就要参加风筝比赛,爸爸要替明明做风筝,明明不答应,要自己做.爸爸生气了,明明只好服从,不情愿地复习 如何形容一个人的优点 怎样形容一个人的优点 英语翻译运动员代表的是他的国家.军人必须临危不惧.谷物是健康饮食不可或缺的部分.奥运会口号更快更高更强.一句句翻译! 用括号内中所给的单词适当形式填空They will come to his son"s( )(four)birthday Lots of___（America）friends come to visit China ever year.用括号内所给单词的适当形式填空 Can such a thing____happening again?A be prevent from B to prevent from People must plant trees to prevent sandstorm_____ A from happening B to happen C happen In 2007,1 March falls on a Thursday.On what day of the week will 1March fall in 2012? We will arrive __ Tokyo __ the afrernoon of March 1st.A at,in B in,on C in,in D at,at The big march will _____ on Saturday.Will you come to see it?A.take placeB.take chargeC.take notesD.take pictures Every February or March,the"Oscars"will be h___in Hollywood The footbal march will be on CCTV ()5 this evening The poor作主语,后面的谓语动词是is 还是are 求图色部分地面积. 增美添色? furniture作主语时,谓语动词用is还是are? 形容字迹很端正的词语或成语 形容到处乱翻的词语,可以是二字词语和成语 形容乱嚷的词四字的! 形容乱猜猜对了的词四个字的词 线路板焊接好过段时间焊锡点就会发黑是什么原因 从一件产品中取出三件产品,设A="三件产品全不是次品",B=“三件产品全是次品”,C=“三件产品至少有一件是次品”,则A,B,C哪两个是互斥事件?为什么A与B不互斥啊？这两件事不是也不能同时发