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腐蚀性气体 有哪些?尽量多点 美国在1971年的“阿波罗计划”是指什么?1971年美国总统尼克松宣布启动“阿波罗”计划,以致在世界引起巨大反响,该计划是否指登月计划?主要内容是什么? red的同音词是什么?last的反义词是什么?free的反义词是什么? 英语翻译求翻译,急用!政府强力救市 市场信心建稳中国股市从6214点大跌到2990多点后,至今涨了700多点,达3693点.四月30日,五一节前的最后一天,上海股市又大涨169点,深圳涨了624点.其中上海涨832 谁帮我找一篇简单的News Report（英文）文章不能太长....像高中的就行.明天就要演讲了...稿子找不到..最近发生的国际或者国家大事...还要背.太感谢来帮我的人了~再写点自己的感想~请你们不 英语翻译 美国的阿波罗计划总共有几人登月? people often call 110 h_____ for help Let's ask the police for help.这句话对吗? 英语填空：-------- --------- the police --------- 110 --------- help咱们拨打110向警察求助吧 please give this book back to kate as soon as she_____tomorrowAwill come Bhas come Ccomes Dis coming Please give the bike back to me as soon as possible.=Please _the bike _ _ as soon as _ _.I got his letter last week.=I _ a letter _ _ last week.=I _ _ _last week.Our school held a sports meeting last autumn.=A sports meeting _ _ _ our school last aut —Will you please give the dictionary to Jane?--Sure ,I ___it to her as soon as she __hereA.will;arrives B.gave;arrived C.am giving;arrives D.will give;will arrive Is it (luck) to get the last ticket 求一篇讲稿,讲讲最近发生的新闻,要英文的,内容概要和感想, i'm so _____(luck,lucky,luckily) that i got the last ticket to the concert.选哪个.为什么 请帮我找一篇最近几天的News Report（英文）因为要做演讲,所以希望是最近这几天比较热门的,大家都感兴趣的新闻,文章不要太短,至少要读个三到五分钟左右,之前很热门的奥巴马访华的事因为 _____,I got the last ticket.是填 Luck 还是 Lucky 什么是阿波罗计划? but the owner caught him at once and went to the telephone to call the police 这句话中call的同义短我问的是这句话中call的同义短语，不是要翻译 You must go to the school office and call the police at once.与"at once"意思相近的单词或词组的是A.right nowB.hurry upC.fastD.in a hurry 英语翻译这句有什么语法知识请告诉我 -Hi,Joe,is Lily_____?-Sorry,she isn't at home.A.in B.at C.front D.next 碱对硫铁有腐蚀性吗? 碱对皮肤的腐蚀性. At home,Mary's mother will ask her____.A.what she did at school B.where she was C.who is her teachMary is seven.She can go to school.It is the first day at school.Her teachers are very good.The other children are very friendly.She likes the school ve 最强的碱是什么?对人体腐蚀性有多强?别扯氢氧化物.对人体腐蚀性有多强?对人体伤害最强的酸呢?有比HF更吊的么?换句话说,碱性最强的的物质. I gave ny 18-year-old daughter a cell phone,so now I can ask her if she _______ home for dinner or just eat at school.A.should come \x05B.came C.has come D.will come应选什么 化学中最强的碱和腐蚀性最强的碱是什么谢谢了,大神帮忙啊 打扰各位了,氢氧化钙这种碱有腐蚀性吗?学校化学老师在讲“常见的碱”时说：氢氧化钠具有强烈的腐蚀性.而对于氢氧化钙的腐蚀性,没提及.那么,氢氧化钙到底有木有腐蚀性?有的话,大不大? 广告语,经典大品牌的经典大品牌的广告语, You can call the police up when you are danger.改成同义句you can _ the police _ _when you are danger.(注意,下划线但表要填一个词）