①中央集权的强化 ②思想控制的加强
③政治体制的变革 ④儒家以外各学派的消亡
本文的作者是,江苏高邮人。全文隐隐贯穿着这样一条思路:→→。文章流露出。
Two simple words "thank you" have made a big difference to thousands of firemen in New York City.
Savannah is girl from Texas. "I was trying to think how I could help them out," she says. After (hear) about sacrifices (牺牲) made by firemen, she felt very (move) by me risks they face, Savannah made 200 thank-you cards for them, "l want to show how much I care about them."
"I told the firemen thank you," Savannah recalls. "They're always there to help you."
Savannah decided (keep) making cards. For the next seven months, she woke up early to paint and colour and cut. In that time, she (send) 1,600 cards with bite-sized candy while meeting her (hero). Soon, the fire station started thanking her.
Once too shy to give a speech at school, is now easy for Savannah to speak regularly to firemen and school students. She is quite different what she used to be.
"She's saying how (thank) she is for them!" Savannah's mom, Debbie, says, "Savannah sees that stepping out and doing something can really make a difference."
向氢氧化钠溶液中滴加稀盐酸至恰好完全反应,反应前后溶液中存在的离子种类如图所示 (其中表示不同离子)。则下列说法正确的是( )
材料一 台湾是祖国神圣不可分割的领土,尽早实現台湾与祖国大陆的统一,是海峡两岸人民的共同愿望。
材料二 左图是台湾省位置与范围图,右图是台湾省城市和交通分市图
①体现了对小微企业的保护
②有利于激发小微企业的积极性
③有利于促进小微企业发展,支撑经济增长
④说明小微企业已成为国民经济的主导力量
某校化学兴趣小组同学探究发现:铜绿[Cu2(OH)2CO3]受热分解后,除生成CO2和水蒸气外,试管中还有一些黑色粉末状固体.请回答下列问题:
a.[提出问题]黑色固体是什么?
b.[猜想与假设]黑色固体可能是:Ⅰ.氧化铜Ⅱ.炭粉Ⅲ. .
c.[查阅资料]炭粉和氧化铜均为黑色固体.炭粉不与稀酸反应,也不溶于稀酸.而氧化铜可与稀酸反应而溶解.
d.[设计实验方案]向试管中的黑色固体滴加足量的试剂为 (填序号)
(A.H2SO4 B.NaOH C.NaCl D.H2O),完成下列实验报告:
实验现象 | 实验结论 |
黑色固体全部溶解,溶液呈蓝色 | 猜想Ⅰ正确 |
| 猜想Ⅱ正确 |
| 猜想Ⅲ正确 |
如果猜想Ⅰ正确,猜想Ⅰ所发生反应的化学方程式为: .