答案是B啊搜索结果第7页,早教吧

早教吧育儿知识作业答案考试题库百科知识分享

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共找到 376 与答案是B啊相关的结果，耗时169 ms

- have you graduated from Fudan University?- yes .it is tow years since I _____it.A.have left B.had left C.left D.leave 答案是选A,我知道肯定是用完英语

时,问题是leave是非延续

In the past few years there __great changes in my hometowmn.A.have been B.had been.我看到这道题的答案是A,但是为什么是现在完成时,不是过去完成时呢?in the past few ye 英语

rs是不是就是现在完成时的标

设集合A={x|x=1/3^n,n∈N},若x1∈A,x2∈A,则必有A.x1+x2∈AB.x1x2∈AC.x1-x2∈AD.x1/x2∈A需要详细过程,急需,谢谢!参考答案是B,但我代人数据好像又不正确,请各位数学高手一定要帮帮我啊! 数学

线性代数的一道数学题目,很二b已知三阶实对称矩阵A的两个特征值是0和-2（负2）,且r（A）=2,求另外一个特征值.答案是负2,请问老师,咋求的没人会还是没分数啊,哎,我是新手,一分没有啊, 数学

2.____for a long time,the fields are all dried up.A.There has been no rain B.Having no rain C.There having been no rain?D.There being 英语

o rain答案是C能不能都

More and more young people are fond ____ playing tennis nowadays.A on B to C in D of答案上是D,为什么啊,最好翻译一下, 英语

下列事例中,不是利用惯性的是A、打保龄球.B、往炉膛里送煤,铲子停止后煤进入炉膛.C、客车紧急刹车,乘客往前倒.D、用棍子敲打棉被,棉被上的灰尘掉下来.C 但不是利用惯性啊。D 答案是力的物理

___that she will come.a that is possible b it is possible c there is some possibilty d it has possibility请问一下C是否正确。语法上无错啊 pengjigui怎么能英语

为平时人们不说就算错呢，我倒

It's reported that Nanjing South Railway station____at the end of this month选项：A has been completed B is completed C was completed D w 英语

ll be complete

a,b为锐角,sina=8/17,cos(a-b)=21/29,求cosb我算出答案是475/493和155/493,可正确答案只有一个.有没有人能通过验算舍一个?为什么由sina>sin（a-b）可推出sin(a-b)=-20/29？20/29也比15/17小啊。数学

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