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试题答案

本文从以下几个角度介绍。

    1、2024 2024宿州市高二期末考试
    2、宿州市十三所重点中学2019-2024学年度高二化学
    3、宿州市2024高三教学质量检测
    4、宿州市十三校联考2024到2024高二期末化学
    5、2019-2024年宿州市十三所重点中学化学期末试卷
    6、宿州市十三所重点中学2017~2018高二化学
    7、宿州二中2024高一期末考试
    8、宿州市13所重点中学2017~2018学年度第二学期期末化学
    9、宿州市十三校2019到2024高二化学
    10、2024宿州市高三质量检测理综

1、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测政治试题


5、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测化学试题


C． It's from the US.
D．Yes, there is.
E. Yes. I've got lots of stamps from China.
( )（1）. Do you collect stamps, Simon
( )（2）. Have you got any pictures from Canada
( )（3）. Is there a letter for me
( )（4）. Where is the stamp from


There's no doubt that positive thinking impacts one's life．However，in recent years，I've come to understand that perhaps positive thinking can result in toxic (有毒的) positivity，which has negative consequences．What we should be aiming for instead is emotional validation (验证)．
Toxic positivity is the maintenance of positive thinking even in situations where it isn't appropriate．“It often comes at the risk of denying our own real feelings or the feelings of others，” says Nina Vasan，MD．While positive thinking in general is a great thing，toxic positivity isn't．It's the act of denying anything negative that's actually happening，and it can involve making people feel bad for having normal human emotions．Someone practicing toxic positivity might say things like “everything happens for a reason” or “just look on the bright side” when a friend shares something difficult in his/her life．
Vasan tells us that with toxic positivity，emotions like sorrow and anger are pushed aside．However，emotional validation allows you to have your feelings．To be exact，emotional validation is about allowing people to experience their feelings and acknowledging that having negative feelings is real and often important．That doesn't mean it promotes and encourages negative thinking endlessly，though．
Toxic positivity encourages us to focus only on the positive，which can stop us from dealing with the feelings we need to work through．Practicing emotional validation is a healthier option for you and the ones you love．“This can be as simple as saying ‘I understand you're really sad’，” explains Vasan．Offering your understanding shows our loved ones that we care about their feelings．Besides，instead of telling someone to look on the bright side，you should offer words and thoughts of support．
Toxic positivity has become prevalent (盛行的)，and you probably know a lot of people who dismiss your negative experiences with statements like “You're too sensitive．”Now you can say：Whatever you're feeling is temporary and allowing yourself to feel it will help you get through it．
12．What can we know about emotional validation
[A]It permits emotional ups and downs．


3、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测生物试题


5、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测生物学试题


1、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测数学试题


3、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测化学试题


1、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测数学试题


3、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测生物试题


B. 通过点燃可以鉴别甲烷与乙烯
C. 与互为同分异构体
D. 和一定为同系物
4. 类推法在化学学习中经常采用，下列类推的结论正确的是
A. 钠与水反应生成NaOH和，高温下铁与水蒸气反应也能生成碱和
B. 常温下，由，Fe在常温下也能与浓硝酸反应产生
C. 由“”反应可推出“”反应也能发生


（3）因为液态氮气的沸点比液氧低，取出试管，液态空气沸腾，先扩散出来的是氮气，氮气不能支持燃烧，故伸入燃着的木条，木条熄灭；后扩散出来的是氧气，氧气能支持燃烧，故伸入带火星的木条，木条复燃。
14．（2024九上·黔南期中）碳酸钙（）是一种常见的补钙剂，可预防缺钙导致的儿童发育不良或佝偻病。碳酸钙中钙元素的质量分数是多少？（写出计算过程）
【答案】=40%
答：碳酸钙中钙元素的质量分数是40%。
【知识点】化学式的相关计算
【解析】【解答】 碳酸钙中钙元素的相对原子质量为40，碳为12，氧为16。根据元素质量分数公式：钙元素相对原子质量×100%/碳酸钙相对分子质量，计算得=40% 。
【分析】利用元素质量分数公式（某元素质量分数=该元素相对原子质量×原子个数×100%/化合物相对分子质量}），代入碳酸钙中钙元素、各原子的相对原子质量计算。


3、安徽省宿州市2025-2026学年第一学期高二学段教学质量检测生物答案