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第四题的不等式怎么解 第六题求解,用不等式组 不等式第17题求解, 既可以与水反应也可以使澄清石灰水变浑浊的物质有哪些?我是说【只用】这种物质就可以和水反应并使澄清石灰水变浑浊最好有气体、有固体！ Amy is a petrry girl. shi is The daughter of emperor.who is she ?__________ My daughter is a modest girl.She never( ）before her classmatesA.shows up B.shows off C.turns off D.turns on把各个选项的意思也列举出来 newspaper,homework是不可数名词吗?请问如何区分可数名词和不可数名词?“当newspaper是指平常的报纸时可数，如果是废报纸不可数”。请问这说法对吗？ the girl's parents don't know _ she is getting on well with her work A.how B.whether C.what为什么选a 选b不行吗?不知道她是否很好地完成了作业 一道关于不等式的取值范围的题.X+1＜a的正整数解是1和2,求a的取值范围.要写理由. Do you know her Not very well.She is always quite and____ a shy girl.-Do you know her -Not very well.She is always quite and____ a shy girl.A looks as if B seems as if C seems like D seems as though为什么？具体一点 完行填空 A girl complained to her father about her bad life.she didn't know what she .. 某校男生人数占55%,男生中会打篮球的占60%,在全体男生中不会打篮球的占女生人数的百分之几? 合桃?核桃?合桃算不算有错别字?应该是核桃吧……我会这样问的原因是…………老师布置作业找错别字&………… 1元一个桃 3个桃核换一个桃 10元能吃18个 某校有男生x人,占全校总人数的百分之五十五,则该校共有多少人,女生总人数为多少人? 某校男生占白分之55,男生中会打球的占百分之60,在男生中不会打球的占女生人数的百分之几?73.3 灰纸板和普通的纸板区别主要是有哪些呀? 蝗虫寿命有多长? 蚂蚱的寿命 蚱蜢的寿命是多少 蜻蜓的寿命到底是多长? 蜻蜓的寿命是多长啊 是多长啊 M1 M2 M1 M2的增速说明什么问题? 用所给单词的正确形式填空：she is a（ ）girl.（Japan） she is a pretty girl w.bionde hair.中间可填什么词语 She is a____(happy)girl,She always___(smile)(用所给单词的真确形式填空,并翻译全句） 转炉炼钢一炉钢要多长时间 转炉炼钢中石灰石什么时候加入比较合适? 81个零件,有一个次品,用天平称三次如何称出来?小学题目…… 双灰纸板和全灰纸板的有什么本质区别吗? 谁有双灰纸板的行情价?或者是跟双灰纸基础知识相关的? they look like stars because the earth is so far away中文