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试题答案

本文从以下几个角度介绍。

    1、2024年高考最后一卷生物
    2、生物最后20天高考
    3、2015到2024高考生物试卷
    4、2024最后一卷生物
    5、生物高考题2024解析全国二卷
    6、2024高考生物最后一课
    7、2024高考全国2生物
    8、二零二一年高考生物试卷
    9、20年高考生物卷
    10、2024年高考生物题
    全国二卷

4、[学科网]2025届高考考前最后一卷地理B(新高考卷)试题


4、[学科网]2025届高考考前最后一卷生物B(新高考卷)试题


A．By studying medicine. B．By making friends. C．By helping people.
7．Which of the following would be the best title for the passage
A．Journey to the east. B．Two foreign sisters in Tianjin. C．The Power of cultural exchanges.
Wolves might not seem like weather heroes, but a new study found that reintroducing them to the Scottish Highlands could help the planet. Wolves could help forests grow, which would take in more carbon dioxide—a gas that keeps heat in the air, leading to weather change.
Today, there are no wild wolves in the UK. They were killed off in Scotland more than 250 years ago by humans. Without wolves, red deer populations have grown up quickly because they have no natural predators (天敌). While this is good for deer, it harms Scotland’s forests. Red deer ate young trees, stopping forests from growing. Only 4% of Scotland’s land is covered by native woodland, much less than other European countries.
A University of Leeds research team used a computer model to study the influence of reintroducing wolves to four areas of the Scottish Highlands. They found out that about 167 wolves could lower the number of red deer enough to let trees grow. This could grow woodlands to take in an extra one million tonnes (吨) of carbon dioxide each year.
The researchers knew some people would dislike the idea, especially farmers who worried wolves might hurt their cows and sheep. Lee Schofield, part of the study, said the goal was to provide new information to help people know the benefits of bringing wolves back to the wild.


湖南省普通高中学业水平合格性考试（三）·英语参考答策

5、[学科网]2025届高考考前最后一卷 B(新高考卷)试题


1、[学科网]2025届高考考前最后一卷语文B(新高考卷)试题


2、[学科网]2025届高考考前最后一卷生物B(新高考卷)试题


4、[学科网]2025届高考考前最后一卷化学B(新高考卷)试题


4、[学科网]2025届高考考前最后一卷英语B(新高考卷)试题


5、[学科网]2025届高考考前最后一卷生物B(新高考卷)试题


D、根据测溶液的pH的方法是用玻璃棒蘸去待测溶液滴于pH试纸上，过一会儿与标准纸色卡进行对比读数来解答。
3．【答案】D
【知识点】有关元素化合价的计算；化学符号及其周围数字的意义；质量守恒定律及其应用
【解析】【解答】A、氯离子表示为Cl-，该书写错误，不符合题意；
B、元素符号前的数字表示原子个数，故2个氧原子表示为：2O，该说法错误，不符合题意；
C、化合物中正负化合价代数和为零，氧为-2价，则碳元素的化合价为+4价，故CO2中碳元素的化合价可表示为：，该书写错误，不符合题意；
D、根据质量守恒定律可知，化学反应前后原子的个数、种类均不变；该反应中反应前有4个Na、2个C、8个O、4个H、4个Cl，反应后有2个C、8个O、4个H，相差4个Na和4个Cl，即X中含有1个Na和1个Cl，故X的化学式为NaCl，该说法正确，符合题意。


【16题答案】
【答案】 ①. P2O5 ②. ③. OH- ④. CaCO3
【17题答案】
【答案】 ①. 铁（或Fe） ②. CH4 ③. 隔绝空气（或氧气） ④. 吸附 ⑤. 乳化 ⑥. 牙膏 ⑦. 维生素
【18题答案】
【答案】 ①. 碱 ②. OH- ③. Fe3+
【19题答案】


3、[学科网]2025届高考考前最后一卷化学B(新高考卷)答案