tom is take some photos 哪里错了 正确的是什么

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• tom is take some photos 哪里错了 正确的是什么
• 懂条件概率的朋友看看吧～一个箱子里有三张卡片,一张两面都是绿的,一张两面都是红的,剩下的那张一面绿的一面红的.现在从箱子里随机选择一张卡片,现在已知这张卡片正面是绿的,问背面是绿色的概率是多少?大家帮忙看看下面两种方法哪种是正确的,错的哪里错了.现在有两种思路：设正面是绿色的为A事件,背面是绿色的为B事件,所求事件为D事件.根据条件概率公式可以得到P（B I A）=P（BA）/ P（A）因为P(BA)=1/3,因为有三张卡片,要让两面都是绿的,只有一张卡片符合,所以是1/3.现在主要是P(A)思路一：三张卡片,一共6个面,3个绿色,3个红色.所以P(A)=3/6=1/2思路二：三张卡片,有两张上面有绿色,所以P(A)=2/3.请问正确的解法是什么?
• 英语根据文章内容填空(一个空)My deskmate,Tom,likes taking photos very much.Last Sunday,he and I went to the mountains to take some photos.We left in the morning_____the sun got too hot.We rode our bikes to go to the mountains.横线上填写一个恰当的连词我了个去，怎么没想到？
• tom has changed a lot .he is no longer like___ a.what he used to be b.that he used to be c.what he is used to be d.that he is used to be正确答案是a,老师说b选项后面缺少什么,缺少了什么呢?楼下的,说一下如果我要选b应该在后面加什么,举个例子吧!恶…我知道应该选a,理由也知道,我只是想知道如果一定要用b的话,应该在b后面加什么?还有楼下说的重复是什么意思?哪里重复了?that相当于空气的话变成he used to be 这样到底是哪里不行了呢?
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• Some ice-cream and soda _____(is,are) on the table,you must take_____(it ,them) away不光要答案,还要带分析,（is，them ）⊙﹏⊙b汗 、书上解释说两个并列的不可数名词做主语,如果描述的是一个概念的两个部分（即是一个整体），句子谓语用单数形式；两个并列的不可数名词做主语,如果描述的是互不相干的两个概念（即两样事物），句子谓语用复数形式冰激凌跟苏打水是一个概念么?我知道黄油面包那个典型例子（①Bread and butter is delicious.②The bread and butter are needed.）可这两样东西貌似没什么联系吧~迷糊中~是答案错了还是没理解正确呀？⊙﹏⊙ 3楼的，bread and butter是一块儿摸了黄油的面包的意思，这个我知道它其实是一个东西，后面用IS，可是，冰激凌跟苏打水很明显是两样东西嘛~搞的我晕忽忽的~
• Tom often ____(take) some photos after school.(用所给词的适当形式填空）
• 已知abc为三角形的三边且满足a²c²-b²c²=a四次方-b四次方.试判断△ABC的形状说为什么不是c²（a²-b²）=(a²+b²)(a²-b²)c²=a²+b²哪一步错了,错在哪里,正确结论是什么.
• 选词填空 用所给单词的正确形式填空go for a drive, take photos, have a look at, grow up, do the dishes, take part in, add...to..., be born, take care of, get angry 1.-What,s Alice? -She_in the kitcken. 2.-Let,s_this afternoon. -Sounds interesting. 3.Mr Zhang_when I was late again. 4.You,d better_some more ingredients_the noodls. 5._she_on May 2nd,1995? 6.Cold you please_on my dog when I am away on vacation? 7.I_the
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