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试题答案

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2、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)政治试题


4、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)生物试题


mother and their father.
The twins ’ names are Lucy and Lily. They are fourteen. They are in the
same class in No. 3 Middle School and they are all good students.
Their father M r. King is a teacher. He ’ s thirty － nine ． He teaches
English in a school near his home ． Their mother Mrs. K ing is a
doctor. She works in a hospital. Now ， they are all at
home． They are happy.


49．细节理解题。根据“the 22-year-old won the 100-meter freestyle at the 2015 FINA Swimming World Championships in Russia. He was the first Asian to ever achieve this.”可知，他是第一个在世界游泳锦标赛上赢得了100米自由泳冠军的亚洲人，也就是说他第一个获得100米自由泳冠军的中国人。故选A。
50．最佳标题题。根据文章可知，宁泽涛在膝盖伤痛的情况下，也没有放弃游泳，最后赢得了四块自由泳金牌，选项B“宁从不放弃”，适合作为文章标题。故选B。
B
I am a middle school student. My name is Wang Jing. My grandfather is 70 years old. He often says life has changed a lot. It becomes better and better. I ask him what life was like when he was a child. The following is what he says.
When he was a child, he used to feel hungry. There didn’t use to be enough food for him to eat. He has two brothers and two sisters. His parents were both farmers. They were very poor and couldn’t let their children eat as much as possible. As for clothes, they didn’t use to have enough clothes. They didn’t use to buy new clothes. The younger brothers and sisters often wore their elder brothers’ and sisters’ clothes. My grandfather is the youngest. Only he went to school and had a job in the city. His brothers and sisters didn’t get an education (教育) and live in the countryside now. Now my grandfather has retired and lives a happy life. He can eat any food that he wants. He can buy clothes that he wants to buy. He says he is much happier than before. He often asks me to study hard. He says if I work hard, I can have a good future.
根据材料内容选择最佳答案。
51．When did Wang Jing’s grandfather not have enough food


2、河南省2027届高二年级TOP二十名校十二月调研 (26-X-274B)物理答案


3、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)生物答案


4、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)化学答案


4、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)物理答案


2、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)政治试题


2、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)物理答案


故选：C。
11．B
【详解】A、用小刀切割蜡烛，可以研究石蜡的硬度，故错误；
B、固态石蜡受热熔化成液态是因为石蜡的熔点较低，故正确；
C、蜡烛熄灭后产生的白烟不是水蒸气冷凝形成的小液滴而是石蜡蒸气遇冷，凝固所产生的固体微小颗粒，水蒸气冷凝形成的小液滴通常称作是白雾，故错误；
D、蜡烛燃烧过程中即发生化学变化又发生物理变化，故错误；
故选B。


答案 B B B B A B A D B D
题号 11 12
答案 A D
1．B
【详解】本题考查化合物中元素化合价的计算。解题依据是初中化学的核心知识点：在化合物中，所有元素的化合价代数和为零，且氧元素通常显-2价。
A、若 Cl 为 +2 价，则代数和为 ，不符合规则，该选项不符合题意。
B、若 Cl 为 +4 价，则代数和为 ，符合规则，该选项符合题意。


3、河南省2027届高二年级TOP二十名校十二月调研考试(26-X-274B)化学答案