去离子水制备时，经过阳离子树脂后，电导率，PH有何变化

what can you doing tomorrow,lily?答语回答啊 1是所有自然数（0除外）的公约数?是正确的吗?正确的理由是什么? To my s___,I can finish doing my homework soon _Jack,can you come?_I ( )my homework will do 还是 am doing 说理由 所有非零自然数的公约数是（）1、1 2、2 3、自然数本身 4、0 Some people were for the plan,but others were a___ it. 所有非0自然数的公约数是1.这句话对吗? "The police were sent for ." 的同义改写是 "Some people called in the police ."为什么? 中国地震多发区都有哪些地方 I am just looking是什么意思 can't believe I am in this picture look!OMG,just no!是什么意识 中翻英：你要确保中午之前到达这里.(make sure) 为什么不可以说a doctor asked what the matter was with you Farmers need water to water the crops and vegetables.为什么在vegetables前就不用加the了呢?Leaves are green还是The leaves are green?到底在什么情况下要加The?什么情况下不加? 把 l need the water 改为疑问句和否定句肯定句 making sure that he know the information.这个句子是makeing sure 引导的宾语从句嘛那不就意味着making sure是谓语嘛 但是动词ing 不是做非谓语嘛 有些混乱 Most single parents find it difficult to take care of family alone.大多数单亲父母发现独自照顾家庭很困难take care of 改成 care for 行不行 如:Most single parents find it difficult to care for family alone. 帮忙想一想11.15上海特大火灾的感想!字不要太多,一小节! 一篇英语完型填空,这是开头：Our family has had many different pets over the year. 选择句子 完成对话 she 和 her 有什么区别 是怎么分成主格和宾格如果是别人来叙述,那么是用she好?还是her? It is pretty well understood today ___ causes the change of our body temperature.A.what B.that what C.that D.how请写出为什么,并翻译一下句子谢谢! 选句子,完成对话.（填序号）① Yes,I'm in Room 606.②Is that Sun Hotel?③Who's that?④This is Mark speaking.⑤How du you do?A:Is that Jim speaking?B:Yes,thiisisJimspeaking.__________A:__________B:Hello,Mark ,How do you do?A:__________B MAKE UP FOR EVER这个牌子怎么样? 选择合适的句子补全对话只写序号 It is not easy to tell a good book from a bad one翻译下 How do you spell “pen”?（作出回答）快快快……………… how do you spell pen?同义词 how do you spell pen?怎么回答 1 Hello!I'm Amy.2 It's biue .3 Beth,what'this?4 P-E-N,pen 5It's a pen.6 How do you spell "pen"7 It's my pen .8 Hi!I'm Beth .I'm English.9 What color is it?10Thank you!正确排序： 上面那一道.how do you spell pen? let me怎么造句