[学林教育]2024~2025学年度第二学期七年级期末调研试题(卷)历史A(部编版)试题于2025-06-16发布，目前免费查试卷答案网站已经汇总了[学林教育]2024~2025学年度第二学期七年级期末调研试题(卷)历史A(部编版)试题的各科答案和试卷，更多试卷答案请关注免费查试卷答案网站。

试题答案

本文从以下几个角度介绍。

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    an apple (一个苹果)
    an hour (一个小时) [尽管 "hour" 的第一个字母是 h，但它发音以元音 /a / 开始，因此用 "an"]
    3. 特殊用法
    ·首次提到某人或某物时：当你第一次提及某个人或某个物品时，通常会使用不定冠词来介绍它们。示例：
    There is a cat on the roof. （屋顶上有一只猫。）
    ·表示类别：不定冠词可以用来指代某一类中的任何一个成员，而不特指具体的个体。示例：
    A teacher must be patient. （老师必须要有耐心。）[这里指所有老师]


    A. Heggarty Maths. B. Lexia. C. Tassomai. D. Moodle.
    B
    For Christina and her team, planting trees isn’t the only goal. She hopes to employ residents, especially youth, to get their hands in the dirt and see how they can grow change.
    Groundwork Bridgeport hired a team of youth and trained them to provide ongoing care for trees in the community. They serve the neighborhoods where they live, monitoring the trees, providing basic care, and connecting with their neighbors. Their “patrolling” is improving each tree’s longevity while giving them valuable experience and a good payment.
    “We’re using data and technology to be able to find even down to the specific city block of where trees are needed the most,” said Amy Lester, Ventures Project Coordinator, Arbor Day Foundation. With a Nature Quant Nature Score of 10, the east Bridgeport neighborhood was flagged as desperately needing trees. Nature Quant is a tech and research company that helps the Arbor Day Foundation determine where trees are needed most in urban spaces.
    The most recent program that happened in partnership with the Arbor Day Foundation was a tree giveaway. Fifty trees were given to residents of the neighborhood identified by Nature Quant.
    Residents showed their support for the effort by coming out in full force. They know what the trees mean to their community, to their health, to the next generation of those growing up in east Bridgeport.


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    D．沉淀转化时是溶解度较小的沉淀转化为溶解度更小的沉淀，AgCl的溶解度大于AgI的溶解度，故D错误；
    故答案为C。
    4．C
    A．滤液a是氯化银饱和溶液，从实验现象可以得出硫化银比硫酸银更难溶，Ksp(Ag2SO4)>Ksp(Ag2S)，故A项错误；
    B．Na2S溶液中存在电荷守恒：c(Na+)+c(H+)=2c(S2 )+c(HS )+c(OH )，物料守恒：c(Na+)=2c(S2 )+2c(HS )+2c(H2S)，两式联立，可得质子守恒：c(OH-)=c(H+)+c(HS-)+2c(H2S)，故B项错误；
    C．滤液a为氯化银的饱和溶液，所以过滤后所得滤液中一定存在：，故C项正确；
    D．过滤后所得清液是AgCl饱和溶液，所以，而滴加硫酸钠溶液并未产生沉淀，说明

    洗气
    C.曲线L可能是T,温度下增大压强的结果
    D.T温度下，C0,的平衡转化率为40%
    ●Ag
    苯（苯酚）
    NOH溶液
    分液


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