硫酸鋇重量法

Our school has a tennis club.就 a tennis ciub 提问 ---- ---- your school ----? 完形填空中的题目：there （ ）a chess club in our school A.have B.has C.is D.was AD排除 为什么不可以接上为B 翻译成那里有一个下棋社团在我们学校 Collecting toy Do the words have the same sound?希望能得到解答 "read"换其中一个字母,使其成为一个新单词,这个新单词是什么? 请帮我填写这段英文句中缺少的一个单词,并且告诉我为什么填.I will read a poem to ( )our teachers. 给one,rain,read,road的开头加上一个字母使它变成新的单词 read 的过去时的单词 国庆节黑白手抄报 手抄报：有关国庆节的,黑白也可以,板块要合适,八开的, 爱我家乡手抄报(黑白版) I will never forget the day ___ I organized a birthday party for my motherA why B when C that D where October 15th is my birthday,（ ）I will never forget.为什么不用when I will never forget my _______ birthday.A.ten B.the ten C.the tenth 请问这答案有正确的吗? Beijing is _________ capital of China and it is _________ city with many places of interest.A.a; a B.a; the C.the; a D.the; the My hobby is (collecting postcards)对括号部分提问 my hobby is 【collecting stamps】 对括号部分提问 1 He is tall 2 His brother is taller（合并为一句话）His brother is taller than ＿His brother is taller than ＿ ＿ My brother is ____than me A.tall B.taller C.tallest He is_than my brother and I A a lot of Bmuch tall C the tallest D a lot taller请解释你选择的理由。不好意思A选项应该是a lot of taller there is a duck ---- the rever.是用in还是用on呢 句型转换 we have different looks.we（ ）have（ ）same look my mother givs a gift to memy mother gives ( ） that‘s ok （ ）welcome ______to this problem is expected to be found before long .A.result B.response C.settlement D.solution选哪一个?为什么其他三个不能选 四个单词意思用法都解释一下 but this was not ___to be a problem.1 demonstrated 2 thought 3 shown 4 found 选择哪一个,及为什么 but this is not found (thought可以吗) to be a problem新概念3 第61页 He is so thin as his brother.(改错) 改错——He gets up not as early as his brother 英语翻译 There is_____money in the wallt.A.many B.any c.much D.lots we make great music together 为什么make后面不加a? i found a different way to ____ this problem yes,I'm .