分别将下列各组物质同时加入水中，能得到无色透明溶液的是( )
A：KCl、NaOH、CuSO4
B：Na2CO3、Ca(OH)2、NaNO3
C：NaOH、KNO3、NaCl
D：Ba(NO3)2、K2SO4、NaCl
抬头一看，一座八角宝塔形的三层建筑耸立在半山腰上，黄色的琉璃瓦闪闪发光。那就是佛香阁。
正前面，昆明湖静得像一面镜子，绿得像一块碧玉。游船、画舫在湖面慢慢地滑过，几乎不留一点儿痕迹。
从这两段话看出，作者观察点不同，看佛香阁是从____往____看；欣赏昆明湖是从____往____欣赏的。作者描写的景物也不同，重点写佛香阁____和____；描写昆明湖，重点写了湖水____的特点。
____ ____ ____ ____.
A man worked in a post office. His job was to handle(处理) all 1 that had unclear addresses. One day he came across a letter which was 2to God. He opened it and it 3，“Dear God，I am an 83yearold woman and I live on a very small pension(养老金).Yesterday someone stole my 4.There was a hundred dollars in it，which was all the money I had 5 until my next pension comes. Next Thursday is Thanksgiving Day，and I have invited my last two friends for 6.Without that money，I have 7 to buy food with. I have no family to 8，and you are my only 9.Can you please help me？” The man was 10，and went around showing the letter to all the other workers. Each of them 11 their wallets and donated a few dollars. By the time he 12 his showing，he had collected 96 dollars. 13then he sent it to the old woman. Thanksgiving Day came and went. The workers 14forgot about it. Then one day，there came another letter from the old lady to God.All the 15gathered around when the letter was16.It read，“Dear God，how can I ever thank you enough for what you did for me？Because of your kindness，I was able to 17 a lovely dinner for my friends. We had a very 18 day，and I told my friends about your19 gift. Thank you very much！” Seeing this，all the workers felt 20 with the nice thing they had done. They looked into each other's eyes and smiled.
