氢氧化钠的ph值

将单词的一个字母改变构成新词将下列各句中括号中单词的一个字母改变,构成一个新词,然后填入句中空白处,使句子意思完整、正确.1.Piease （catch） the ____ ,Jenny.2.Don't (talk) with the ____boy.3.They 什么是谈恋爱的真正含义? 一个男生说想跟我拍拖, 《当我优秀地足够让你不会离我而去时,我已经不再非你莫属了. 什么叫恋爱?恋爱是什么意思? ——The bag is so heavy .Could you please help me with it?——_____A.sure ,B.thank you,C.you're welcome,D.you're so kind can you __the cake into__,please第一个横线上面开头字母c,第二个是p 数学题三个选择 61. ---- Can I help you with the bag? ---- _____________________.A. No, no. I can take it myself B. Thank youC. Sorry, you can’t D. No, I’m all right62. ---- Hello, I’d like to speak to Mark, please. ---- __________________ 小学概念数学题(3道)(选择和判断)1:百分数就是分母为100的分数.(对还是错)2:甲 乙 丙 三个人分别围着面积一样的正方形,长方形,圆形,他们谁走的路程多?3:用长度一样的铁丝围成①正方形,②长 如图,在平行四边形ABCD中,点M为边AD的中点,过点C作AB的垂线交AB于点E若∠EMD=3∠MEA,求证：BC=2AB 如图,M是平行四边形ABCD边AD的中点,且MB=MC,求证：这个平行四边形是矩形. It may rain this afternoon,You'd better take an umbrella with you .今天下午也许会下雨,你最好带上雨伞.请问后面的with you 可否去掉,我个人觉得它是多余的.网友们能否帮我解答一下为什么不能去掉它. 10.89×10.69减0.69×0.89等于多少? it will rain this afternoon,please( )a raincoat( )youA take ,to B take ,whth C bring to D bring from 八十九毫米等于多少厘米 There __this afternoon,You'd better take an umbrella with you.--Ok.,thanks.Ais going to rainB is going to be rainy C is going to be rain D is goiing to have rain You'd better take your umbrella in case that it rains this afternoon中为什么是rains 不是will rain Do you think it ____ (rain) this afternoon? 烟草的核酸中各具有几种碱基和核苷酸的种类? 过新年,买新衣 作文 500字情况危急! 过新年作文500字语句通顺,500字!关于过新年的,5篇! 帮忙找3篇500字左右的作文 -It's rainning,Daisy.Please _ an umbrella with you.-Thanks,I'll return it to you when I _ next weekA. take;come B.take;will come C. bring;come D.bring;will come为什么要选A选C不行么 It‘s raining now,take___umbrella with you.A.aB.anC.theD./请写明原因为什么要选这个答案 It's ___(cloud).please take an umbrella with you when you,re out .填适当的形式 take an umbrella with you为什么是take不是bring It's raining o（）.take your umbrella with you,Lucy 括号里添什么? 有没有500字的关于过新年的作文?是现代的,不是农村的. Would you please _(help)me with my English? Would you please help me with this heavy box? 补全对话.A;Morning,Can I help you.B;yes,would you please tell me how i can send a box of books totaiwan.B; two ways;by animal or by seamail.A;But what's the difference,A;it takes less time for package to reach taiwan by airmail than by saemail,bu