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已知单调递增的等比数列an满足:a2+a4=20,a3=8 求数列an的通项公式 1.The shawls made of the wool of the Tibetan antelope came into ______fashion the 1990s,so they were in ______great demand.A不填,不填B不填,a C the,the Dthe a 2.lt was in the house by the sea_____he used to live ____we met again unexpectedly.Awh 高二英语单项选择题.很急!28-35题.请解释一下.并选出正确答案谢谢.很急把图片保存下来应该就能行了啊。。字太多。我打字又慢。。不好打啊 the olympic games,______in 776B.C,did not include women players until 1912为什么选first played不是to be played Autumn ( ),( ) the leaves.A.comes,down fall B.coming,fall down C.coming,down fall D.comes,fall down “指如削葱根”的下句是? The homework was finished. finish不是及物动词吗 为什么这里没有接宾语也可以 有哪些从句类型Our school,wich takes up 63 thousands square kilometers ,is very large of size. 类似天生我才必有用的诗句 天生我才必有用下句是什么?出自那里, 高中都有哪些从句是缺什么补什么的?我只知道同位语和宾语从句是的 还有什么定语状语表语从句也是的吗? 英语翻译 第七题和第八题. 单选第7题,要保对 云遮雾涌的意思 云遮雾涌 分解句子【to which的疑惑】高分求解原句是：Human facial expressions differ from those of animals in the degree to which they can be controlled on purpose.在上面这句话里,to which的作用我不太清楚,很显然,这是一个定 take great care of one’s appearance / appear / disappear翻译短文,以及单词, 分解一句话【to which的疑惑】高分求解!原句是：Human facial expressions differ from those of animals in the degree to which they can be controlled on purpose.在上面这句话里,to which的作用我不太清楚,很显然,这是一 关于to which的疑问Which nation does she belong to?to which nation does she belong?外教问我们这2个句子 哪一个比较正式 我们都认为是第一个which开头的 但他说to which比较正式 是这样的吗?另外把to提到前面 这句话里which前面的to怎么理解?There are cultural differences between China and the English-speaking countries to which English lerners should pay attention. 初三英语4.5.6.7题 scenic spots的中文意思 缘是什么音节 为追求光明而宁愿舍弃自己生命的名人故事? 缘是什么音节的字 pls kindly adv.the col.appearance of bulk after your review pls kindly adv.the col.appearance of bulk after your review 山姆大叔什么意思? 初二英语首字母i___ to make something,or become bettera___ to cause some results or changes in Who play football Kim realized that the shot didn't hurt much at all.的中文意思? 英语翻译这句话是翻译成:1.我想要说的话,现在已经变得越来越清晰了 2.我能说的只是现在一切更明了了 2种哪一种符合语法原意?还是都可以?这个 it's gettin 的it是指"整件事"还是"我想说的话"?