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能源是国民经济发展的重要基础,我国目前使用的能源主要是化石燃料 , 回答下面 4 个小题。 1 )已知碳的燃烧热△ H=-393.5KJ/mol ,完全燃烧 10mol 碳释放的热量为 2 )实验测得 6.4g 乙醇在氧气中充分燃烧生成 CO 2 (g) 和 H 2 O (l) 时释放出 113.5KJ 的热量,试写出乙醇燃烧热的热化学方程式: 3 )从化学键的角度分析,化学反应的实质就是反应物的化学键的断裂和生成物的化学键的形成过程.已知 H-H 键能为 436KJ/mol , H-N 键能为 391KJ/mol ,根据化学方程式: 4)如图是 1molNO 2 和 1molCO 反应生成 CO 2 和 NO 过程中能量变化示意图,请写出 NO 2 和 CO 反应的热化学方程式: 在反应体系中加入催化剂,E1的变化是 (填“增大”、“减小”或“不变”),对反应热是否有影响?
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【单选题】According to the author which of the following is TRUE?
A.
The first kindergarten was started by Germany educator Friedrich Froebel in 1837 in Blankenburg, Prussia.
B.
Froebel chose the German term kindergarten (children's garden) because he intended children in his school to grow freely in a garden.
C.
At the time, almost every children under the age of seven attended school, so Froebel designed his kindergarten for children between the ages of three and seven.
D.
Froebel's kindergarten was based on the then idea that children's play was significant and the kindergarten became widely admired for its revolutionary, teaching methods.
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【简答题】句型转换。 1. His father started to work when he was thir years old. (改为同义句) His father started to work _____ _____ _____ _____ thir. 2. Mr. Brown married a young nurse. (改为一般疑问句) _________________...
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【单选题】The author states that the early universities in the British colonies were ______.
A.
started by British government
B.
supported by the British universities
C.
modeled on the British universities
D.
trying in vain to copy Oxford and Cambridge
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【简答题】Listen and match the pairs. (听录音,选择正确的答案补充完整电子邮箱地址。) 例 . r.cane@ ( 选 d) a. ccs.fr 1. service@ b. east.jp 2. k-suzuki@ c. cnv.de 3. f_carlton@ d. orange-design....
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【单选题】Which of the following interested the researchers most?
A.
The mice that started dieting in old age。
B.
27 0f those 46 0ld genes that continued to behave like young ones．
C.
Calorie restriction that works in people．
D.
Dieting that makes sure a drug is effective．
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【单选题】What is the main idea of the passage?
A.
With determination and persistence, Juliette started Girl Scout troops all over the world.
B.
Juliette, a lucky deaf woman, always got whatever she wanted.
C.
Juliette, traveled to many different places in her life time but ended up back in Savannah.
D.
Without Juliette, the Girl Scouts would still be a British phenomenon.
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【简答题】邮箱地址 e-mail _________
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【判断题】运动中最容易发生痉挛的肌肉是腓肠肌
A.
正确
B.
错误
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【简答题】阅读下面的短文，按信息表中的要求填写信息。 My name is Li Hua. Jack is my good friend. Before he started high school, he used to spend a lot of time playing s with me. But now he is always busy. He used to like doing s...
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【简答题】在现代人力资源管理中,广义的薪酬系统包括主观报酬和客观报酬两个部分。客观报酬包括 ____ 、间接报酬和 ____ 。直接报酬包括工资、 ___ 、 ___ 、 ___ ,等等。
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相关题目：
【单选题】According to the author which of the following is TRUE?
A.
The first kindergarten was started by Germany educator Friedrich Froebel in 1837 in Blankenburg, Prussia.
B.
Froebel chose the German term kindergarten (children's garden) because he intended children in his school to grow freely in a garden.
C.
At the time, almost every children under the age of seven attended school, so Froebel designed his kindergarten for children between the ages of three and seven.
D.
Froebel's kindergarten was based on the then idea that children's play was significant and the kindergarten became widely admired for its revolutionary, teaching methods.
查看完整题目与答案
【简答题】句型转换。 1. His father started to work when he was thir years old. (改为同义句) His father started to work _____ _____ _____ _____ thir. 2. Mr. Brown married a young nurse. (改为一般疑问句) _________________...
查看完整题目与答案
【单选题】The author states that the early universities in the British colonies were ______.
A.
started by British government
B.
supported by the British universities
C.
modeled on the British universities
D.
trying in vain to copy Oxford and Cambridge
查看完整题目与答案
【简答题】Listen and match the pairs. (听录音,选择正确的答案补充完整电子邮箱地址。) 例 . r.cane@ ( 选 d) a. ccs.fr 1. service@ b. east.jp 2. k-suzuki@ c. cnv.de 3. f_carlton@ d. orange-design....
查看完整题目与答案
【单选题】Which of the following interested the researchers most?
A.
The mice that started dieting in old age。
B.
27 0f those 46 0ld genes that continued to behave like young ones．
C.
Calorie restriction that works in people．
D.
Dieting that makes sure a drug is effective．
查看完整题目与答案
【单选题】What is the main idea of the passage?
A.
With determination and persistence, Juliette started Girl Scout troops all over the world.
B.
Juliette, a lucky deaf woman, always got whatever she wanted.
C.
Juliette, traveled to many different places in her life time but ended up back in Savannah.
D.
Without Juliette, the Girl Scouts would still be a British phenomenon.
查看完整题目与答案
【简答题】邮箱地址 e-mail _________
查看完整题目与答案
【判断题】运动中最容易发生痉挛的肌肉是腓肠肌
A.
正确
B.
错误
查看完整题目与答案
【简答题】阅读下面的短文，按信息表中的要求填写信息。 My name is Li Hua. Jack is my good friend. Before he started high school, he used to spend a lot of time playing s with me. But now he is always busy. He used to like doing s...
查看完整题目与答案
【简答题】在现代人力资源管理中,广义的薪酬系统包括主观报酬和客观报酬两个部分。客观报酬包括 ____ 、间接报酬和 ____ 。直接报酬包括工资、 ___ 、 ___ 、 ___ ,等等。
查看完整题目与答案