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本文从以下几个角度介绍。

    1、海南高一期末联考生物
    2、海南省2019级高一生物必修一
    3、海南高一生物课本
    4、海南高中生物新教材
    5、海南高中生物合格考试卷2024
    6、海南省2024年高中合格性考试生物
    7、海南省高中生物版本
    8、海南省高中生物合格考试题答案
    9、海南省高中生物教材版本最新
    10、海南高二生物期中试题

1、高中2024-2025学年海南高一阶段性教学检测(四)4地理试题


6、高中2024-2025学年海南高一阶段性教学检测(四)4生物试题


Li Ming: Thank e in, please.
Jenny: This gift is for you.
Li Ming: A blue T shirt. I like it. My favourite colour is blue.
Danny: The storybook is for you, Li Ming.
Steven: You like to play basketball. Here is a basketball for you.
Li Ming: Thank you. I like them very much. Let's eat the birthday cake.
Jenny: Let's sing “Happy birthday to you”.


There’s no shortage of tricks for improving mental health. But many of them are not yet well understood. Here are some of the tried-and-true things that you can turn to.
___16___
Surely it is not surprising that getting outside is first on this list. There’s strong evidence that it really can help reduce stress and improve mood. For example, researchers have found that looking at complex patterns found in flowers, mountains, ocean waves and other elements of nature can lead to more a-waves in your brain that are associated with relaxation. ___17___ . For instance, you can open a window to let in fresh air or use nature-inspired scents (气味).
Tidy up your space
Getting organized won’t help with serious depression. ___18___ . In addition it can also enhance your productivity at the office and greatly improve the quality of your life if you can learn how to declutter and become organized.
Plan a trip
Taking a vacation is not a new idea when it comes to boosting your mental health. But what if you don’t have the means or the time ___19___. Research shows that anticipating a trip can increase a person’s happiness.


4、高中2024-2025学年海南高一阶段性教学检测(四)4地理答案


3、高中2024-2025学年海南高一阶段性教学检测(四)4英语答案


1、高中2024-2025学年海南高一阶段性教学检测(四)4政治答案


5、高中2024-2025学年海南高一阶段性教学检测(四)4政治答案


1、高中2024-2025学年海南高一阶段性教学检测(四)4历史试题


4、高中2024-2025学年海南高一阶段性教学检测(四)4语文答案


A.生锈铁钉放入少量的稀盐酸中,溶液呈现浅绿色
B.向硫酸铜溶液中加入适量氢氧化钠溶液,产生蓝色沉淀
C.向氢氧化钙溶液中加几滴紫色石蕊溶液,溶液变红
D.木炭在氧气中燃烧生成能使氢氧化钠溶液变浑浊的气体
11.M是一种金属元素,M2+与其他几种离子构成的化合物的溶解性见表,根据所给信息,判断下列反应肯定不能发生的是( )
离子 O2- OH- C Cl- S N
M2+ 难溶 难溶 难溶 易溶 易溶 易溶


II.磷的含氧酸有磷酸(H3PO4)、亚磷酸(H3PO3)、次磷酸(H3PO2)等多种,它们在工业上都是重要的化工原料。
(1)亚磷酸(H3PO3)是一种二元弱酸,写出H3PO3与过量NaOH溶液反应的离子方程式:________________________________________________________。
某温度下,0.01 mol·L-1 H3PO3溶液的pH为2.7,该温度下,H3PO3的一级电离常数Ka1=________(已知:lg 2=0.3 ,lg 3=0.5,lg 5=0.7,H3PO3的第二步电离忽略不计)。
(2)某实验小组用NaOH溶液处理含H3PO3废水,当溶液中c(Na+)=c(H2PO)+2c(HPO)时,溶液呈___________性(填“酸”“碱”或“中”)。
(3)已知:常温下,磷酸(H3PO4)的Ka1=7.11×10-3,Ka2=6.23×10-8、Ka3=4.5×10-13,则常温下,Na2HPO4溶液中H2PO、HPO和PO的浓度由大到小的顺序为________________________。
(4)向某浓度的磷酸溶液中滴加NaOH溶液,其pH与溶液中H3PO4、H2PO、HPO和PO的物质的量分数δ(X)(平衡时某物种的浓度与整个物种浓度之和的比值)的关系如图所示。以酚酞为指示剂,当溶液由无色变为浅红色时,发生主要反应的离子方程式是________________________。
选择题:


3、高中2024-2025学年海南高一阶段性教学检测(四)4化学答案