除锈需要多少浓度盐酸

物极必反的解释 fyh英语怎么讲 happen to后面是加 be吗还是其他she couldnt leave earlier,becase there happened ---an english test.A to be B to have C to take D to hold W J M这三个字母能拼凑出一句英文吗?这三个字母是我女朋友的名字,我想给她惊喜,希望拼出浪漫的句子. 过去时练习题,2,3Sally was one of the most intelligent students in the primary school.The headteacher in her class and the students were good with her.She enjoyed the school life and made a lot of friends.But one day,all of the students in the c 过去时练习---求答案和讲解（在线等）用动词正确形式填空Hasn't I____(told) you not _____(play) in the garden?那Why did she____(come)yesterday?Because she _____(invite)me to her birthday 天若有情天亦老,是谁的诗句? 诗句天若有情天亦老下一句是什么? 同义句转换,每空一词 how can we fight pollution? We can't fight in the school. We can see the falling fighting是什么意思? we can forever什么意思 阅读理解解析 You must decide,but c.&d.together could work very well.It would be quite difficult to fight a whole gang of bullies and you might be hurt badly if you did.为什么3.We can conclude from the passage that ________.A.all the older st We Gon' Fight 歌词 英语问题【We believe that our freedom is worth ______(fight).】We believe that our freedom is worth ______(fight).注：怎么填都可以,不是动词适当形式填空~The music is worth _______(listen). 山海经-先秦古籍山海经描述的神奇世界和古老传说真实存在吗?有没有什么假说呢? My Spirit Will Go On 歌词 My Spirit Will Go On是谁的歌啊 英语翻译I have never thought about this.They have already asked me.这2句话里为什么要加HAVE?我觉得没有HAVE翻译起来才比较通顺 第一句是 我从未想到关于这点.有了have就变成了 我已经从未想到这一点 第2 early than u 这句话怎么翻译啊? 描写狩猎的古诗不要《观猎》,其它的, he pretend not to know it.句中not用法?not的词性是副词吗?它修饰哪个单词? 对联 下雨天天下雨雨来雨去 下联 下雨天浇地下一句 对联：下雨天,下雪天,天下雨雪.求下联 以前看过的一部算是科幻电影吧 一个科学家发明了一个具有人工智能的机器人 一个小球大小 左右各有个小翅膀有天有个坏蛋想来抢走这机器人虽然被科学家和机器人联手打败了 但是机器人 英语翻译找不到合适的措辞,来自于 False and True Humour,by Joseph Addison YOU这个英文名弄成繁体的‘带符号、非主流点的 Do you have new teacheres?这样回答 平行宇宙和时间无关么? “ ,”在诗人贺知章的眼里,春风是巧夺天工的裁缝,而在我最喜欢的是和风细雨,“ ,”是多么富有诗情