b分之a+d分之c=什么

相关推荐

• 含脂肪较低的动物性食物是什么?A 猪肉B 鱼肉C 牛肉D 羊肉
• 平面a//平面b的一个充分条件是什么A.存在一条直线a,直线a//平面a,直线a//平面b B.存在一条直线a,直线a属于平面a,直线a//平面b C.存在两条平行直线a,b,直线a属于平面a,直线b属于平面b,直线a//平面b,直线b//直线a D.存在两条异面直线a,b,直线a属于平面a,直线a//平面b,直线b//平面a
• 如图,C为线段AB上一点,且AC=2BC,AC的四分之一比BC小5（1）求AC,BC的长（1）求AC,BC的长(2)点P从A点出发,以一个单位/秒的速度在线段AB上向B点运动,设运动时间为t秒（t
• 公民“在行使*和权利的时候,不得损害国家的、社会的、集体的利益和其他公民的*和权利.”这要求公民 （ ）A、可以采用任何方式行使自己的*和权利B、要依法维护自己的合法权益C、不得以非法手段谋取*和权利D、不得超越合法权利的范围这是一道不定项选择题，此题的B项该选吗，为什么？求教
• ----------is drawing near.A.The National Day B.A National Day C.National Day D.The Day of National为什么
• 3道高考英语单选题 求详解The new idea ＿ first in Japan has been＿to other parts of the world.A carried out;brought out B having been carried out;brought aboutC carried out;brought over D having been carried out;brought in为什么不选DWould you please do me a favor to post the letter?＿＿＿＿＿＿＿＿＿＿＿＿A You are welcome. B It's my pleasure.C With pleasure. D No,I can't为什么不选BYou ＿ the burning sun and heavy rain if you want
• 下列能源中,不会对环境造成污染而且取之不尽的是什么?A石油B天然气C煤D太阳能
• 1.Few of them enjoyed ____ the cabbage in vinegar,but Caption Cook insisted ___ from the time they went abroad.A.eating;they do B.to eat;they should doC.eating;on doing D.to eat;on them doing(答案是A,我认为第一空填eating第二空填on them doing(insist on...) 望高手指点一二说出为什么)2.There is a well-equipped laboratory ___ the woods.A.along B.dowm C.cross D.beyond请问这句话怎么翻译?（超越了森林?3.It's very important ___ us ___ English well.A.of;learning B.for;learning C.of;learn D.for;to learn
• 一道初三英语选择题(十八)Have you____your father's letter?A heard fromB got from C heardD received我是选A的,我记得它的意思是收信,答案是B,为什么?谢谢错了,答案是D
• 1.Mr Green often helps those students ____he thinks are not quick at their lessons.a.whom b.who c.when d.becausethose students 不是help的宾语吗?为什么不选a 2.The old man has two sons,____looks like him.a.all of them b.both of them c.each of them d.neither of them 先排除一下a和b,c 和d都可以用单数形式啊,为什么答案选d而不选c?3.____to see the film please raise the hands.a.Those who wants b,those who want c.Any one wants d.People want4.The reason ____being late for the meeting was _____his l
• 已知2Fe2++Br2=2Fe3++2Br2-,在标准状况下,向100ml0.2mol／L的FeBr2溶液中通入一定体积的Cl2,充分反应后,溶液中有50%的Br2-被氧化,则通入的Cl2是多少摩尔?
• Millie got a fright.She dropped her coffee cup.