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【单选题】

已知某温度下，A + B → C + D △rHmӨ(1) = -40.0 kJ·mol-1， 2C + 2D → E △rHmӨ(2) = 60.0 kJ·mol-1，则E → 2A + 2B 的△rHmӨ为（）。

140 kJ·mol-1

-140 kJ·mol-1

20 kJ·mol-1

-20 kJ·mol-1

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参考答案：

举一反三

【判断题】因为主题词能反映同一概念主题,适用于查找跨学科或跨专业的文献。

正确

错误

查看完整题目与答案

【单选题】What is NOT a principle for secondary data collection?

Collect all the data you can

Know your information gaps

Be cautious with figures

Know what you are looking for

查看完整题目与答案

【判断题】Generally phytochemicals have been classified into five major categories based on their chemical structures. These categories include carbohydrates、lipids、phenolics、terpenoids and alkaloids.（）

正确

错误

查看完整题目与答案

【判断题】Nutrition experts suggest that young people in our country should eat more milk, eggs, fish, meat and other protein-rich foods, because protein is the main energy source.

正确

错误

查看完整题目与答案

【判断题】慢性肝脏病存在持续细胞损伤,衰老细胞也会不断产生,同时免疫系统钝化,不能清除这些衰老细胞,导致“慢性衰老”的出现,此状况对器官功能有害且利于肿瘤发生。()

正确

错误

查看完整题目与答案

【单选题】What is NOT an aim of Community-Based Surveillance?

Saving lives through early warning that leads to early action

Connects the community to health facility in routine activities

Promote trust within the communities – linking the community to volunteers who are active, available and accessible

Replacing the already existing surveillance systems

查看完整题目与答案

【判断题】可根据化学反应的计量方程式推断反应速率系数的单位和反应总级数。对反应2A (g) + B (g)→C (g)， k 的单位是 mol-2·L2·s-1，反应级数为 3。 ( )

正确

错误

查看完整题目与答案

【多选题】有关衰老与癌症的关系说法正确的是()

细胞老化是癌变壁垒

基因组不稳定性与癌症和老化均相关

代谢调节异常是细胞癌变或老化的分水岭之一

干细胞基因组不同程度、不同位点的损伤决定其癌变抑或老化

查看完整题目与答案

【单选题】What is NOT a requirement to apply Community-Based Surveillance?

Community engagement and commitment with the initiative

Implement the activities regardless the existence of other initiatives

Analysis of the local capacity

Coordination with other partners and stakeholders

查看完整题目与答案

【单选题】What is the best option to explore barriers and motivators for health promotion?

Identify contextual factors for people’s potential to change behaviour

Identify potential barriers from the social, cultural, gender and physical perspective

Identify beliefs, values, social and cultural issues that could impact the risk communication strategy

All the above

查看完整题目与答案

相关题目：

【判断题】因为主题词能反映同一概念主题,适用于查找跨学科或跨专业的文献。

正确

错误

查看完整题目与答案

【单选题】What is NOT a principle for secondary data collection?

Collect all the data you can

Know your information gaps

Be cautious with figures

Know what you are looking for

查看完整题目与答案

【判断题】Generally phytochemicals have been classified into five major categories based on their chemical structures. These categories include carbohydrates、lipids、phenolics、terpenoids and alkaloids.（）

正确

错误

查看完整题目与答案

【判断题】Nutrition experts suggest that young people in our country should eat more milk, eggs, fish, meat and other protein-rich foods, because protein is the main energy source.

正确

错误

查看完整题目与答案

【判断题】慢性肝脏病存在持续细胞损伤,衰老细胞也会不断产生,同时免疫系统钝化,不能清除这些衰老细胞,导致“慢性衰老”的出现,此状况对器官功能有害且利于肿瘤发生。()

正确

错误

查看完整题目与答案

【单选题】What is NOT an aim of Community-Based Surveillance?

Saving lives through early warning that leads to early action

Connects the community to health facility in routine activities

Promote trust within the communities – linking the community to volunteers who are active, available and accessible

Replacing the already existing surveillance systems

查看完整题目与答案

【判断题】可根据化学反应的计量方程式推断反应速率系数的单位和反应总级数。对反应2A (g) + B (g)→C (g)， k 的单位是 mol-2·L2·s-1，反应级数为 3。 ( )

正确

错误

查看完整题目与答案

【多选题】有关衰老与癌症的关系说法正确的是()

细胞老化是癌变壁垒

基因组不稳定性与癌症和老化均相关

代谢调节异常是细胞癌变或老化的分水岭之一

干细胞基因组不同程度、不同位点的损伤决定其癌变抑或老化

查看完整题目与答案

【单选题】What is NOT a requirement to apply Community-Based Surveillance?

Community engagement and commitment with the initiative

Implement the activities regardless the existence of other initiatives

Analysis of the local capacity

Coordination with other partners and stakeholders

查看完整题目与答案

【单选题】What is the best option to explore barriers and motivators for health promotion?

Identify contextual factors for people’s potential to change behaviour

Identify potential barriers from the social, cultural, gender and physical perspective

Identify beliefs, values, social and cultural issues that could impact the risk communication strategy

All the above

查看完整题目与答案

参考解析：

题目纠错 0

发布

已 知 某 温 度 下，A + B → C + D △rHmӨ(1) = -40.0 kJ·mol-1， 2C + 2D → E △rHmӨ(2) = 60.0 kJ·mol-1，则E → 2A + 2B 的△rHmӨ为（ ）。

【判断题】因为主题词能反映同一概念主题,适用于查找跨学科或跨专业的文献。

【单选题】What is NOT a principle for secondary data collection?

【判断题】Generally phytochemicals have been classified into five major categories based on their chemical structures. These categories include carbohydrates、lipids、phenolics、terpenoids and alkaloids.（）

【判断题】Nutrition experts suggest that young people in our country should eat more milk, eggs, fish, meat and other protein-rich foods, because protein is the main energy source.

【判断题】慢性肝脏病存在持续细胞损伤,衰老细胞也会不断产生,同时免疫系统钝化,不能清除这些衰老细胞,导致“慢性衰老”的出现,此状况对器官功能有害且利于肿瘤发生。()

【单选题】What is NOT an aim of Community-Based Surveillance?

【判断题】可 根 据 化 学 反 应 的 计 量 方 程 式 推 断 反 应 速 率 系 数 的 单 位 和 反 应 总 级 数。 对 反 应2A (g) + B (g)→C (g)， k 的 单 位 是 mol-2·L2·s-1， 反 应 级 数 为 3。 ( )

【多选题】有关衰老与癌症的关系说法正确的是()

【单选题】What is NOT a requirement to apply Community-Based Surveillance?

【单选题】What is the best option to explore barriers and motivators for health promotion?

已知某温度下，A + B → C + D △rHmӨ(1) = -40.0 kJ·mol-1， 2C + 2D → E △rHmӨ(2) = 60.0 kJ·mol-1，则E → 2A + 2B 的△rHmӨ为（）。

【判断题】可根据化学反应的计量方程式推断反应速率系数的单位和反应总级数。对反应2A (g) + B (g)→C (g)， k 的单位是 mol-2·L2·s-1，反应级数为 3。 ( )