氨气和水反应方程式

he jump could how high 连词成句 感叹句 . “America"和“USA"在用法和意义上有什么区别? ____年 _____月 _____日,联合国正式成立,总部在美国 ______ 联合国的总部在哪里? the investigators discussed the results of their experiment for a long time__.a.but could not reach a decision that they agreed to b.without being zble to come to the point where a decision could be madec.but in vain could they come to a decision whi You are my form son . He was still working hard though it was very late.这是什么从句?He was still working hard这句话是主谓宾还是主系表? Having a conversatian with your best friend is very____(heip)when you are in trable要回答哦 联合国安全理事会简称“安理会”,这些国家分别是? 你估计中华人民共和国第一次参加联合国安全理事会会议是在：(   )A．1970           B．1971           C．1972  我旁边的女生这样做是什么意思?以前还和我一起出去吃饭,现在只跟女生出去吃饭,不跟我一起出去吃饭了,那可是她平时照样跟我谝呀.我是男的. A road is above our city 为什么用above a couple of weeks Our city is becoming___A.more and most beautiful B.more beautiful and more beautifulC.more and more beautiful D.beautiful and beautiful couple of times a couple of time a couple time couples of times Zhongshan Road is ( ) road in our city.选A 其余三项为什么不对?A.the second widest B.a second widest C.the two widest D.the second wider a couple of weeks 意思 A____ road goes ___ from our college to the city center.A sraight;straight Bstraightly;straightlyC straight;straightly D straightly; straight think It is interesting to learn English.有没有is有什么语法区别吗? let me tell you something （ ）my school.A,about B,for C,to 总结一段时间的得失是什么意思啊?求热心网友帮我解答!如果可以请告诉我可以写什么? 请各位走过路过的热心网友们帮帮忙呀：砌墙的石头——后来居上 的意思是什么?（在线苦等中.） 我要：复恐匆匆说不尽的意思,有个热心网友发“kkjhgfdqwertyuikmnbftyuikmnbv ”,是啥东东? maybe he will come to have dinner改为同义局 作者在《治水必躬亲》中表明了什么观点?为什么要这样做? 治水必躬亲第二段文字中表明的观点是什么?问什么要这样做? Who ( ) the highest ? A. jumps B. jumping C. jump 治水必躬亲的课文的主要观点是什么?具体怎样做?为什么要这样做? 作者在这篇文章当中要表达一个什么样的观点?为什么要以“听见花儿的呼吸”为题?我常常面对一朵独自绽放的花儿发呆，仿佛能听见它的呼吸。我不知道它叫什么名字——红的、白的、粉 It was from only a few supplies that she had bought in the small market __ the hostessoffered us such an unfoegettable dinner .A where Bthat C when D which jack may not come to the party,because he said nothing about the party.为什么要用may,不可以用need的吗? She draw the small bridge on the painting with only a few .A.Lines.B.movements.C.Strokes.D.Brushes.