《生产安全事故报告和调查处理条例》规定，（）上报至设区的市级人民政府安全生产监督管理

文中所提到的中国人民“反入侵”的斗争有哪些？请列举出来。

下列物质中，有一种物质的颜色与其他三种的颜色不同，这种物质是(　　)

A．NaOH

B．Na₂O

C．Na₂O₂

D．NaHCO₃

Why are people interested in eating raw foods or whole foods (天然健康食品) ? One reason is that eating these types of food reduces the risk of acid (酸) accumulation in your body.

Raw and whole foods are usually digested more efficiently than cooked foods. When we cook foods, we destroy the natural enzymes (酶) that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is overweight. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive system, where it becomes increasingly acidic. To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.

Processed foods (加工食品) contain chemical elements, which might confuse the appetite mechanism that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism (新陈代谢) becomes inactive, and the result is weight gain and obesity.

The accumulation of acid in the digestive system makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.

To stop this vicious circle in its tracks, people need to consume food and supplements that will neutralize the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself, you need to take an active approach. One effective way is to choose raw and whole foods appropriately according to your health conditions and personal preferences.

小题1:It can be inferred from Para. 2 that __________.

A．we’d better be cautious about raw and whole foods

B．foods with natural enzymes help people keep fit

C．it is important for people to protect their vital organs

D．giving up cooked and refined foods is a new lifestyle小题2:Processed foods are unhealthy because they __________.

A．destroy body’s cells

B．harm your stomach

C．may lead to obesity

D．stop body’s natural function小题3:What is the main purpose of this passage?

A．To warn people of the problem of overweight.

B．To inform people of the harm of processed foods.

C．To advocate eating more raw and whole foods.

D．To tell the differences between raw and processed foods.小题4:What is likely to be talked about following the last paragraph?

A．Different causes of acid accumulation.

B．Correct ways to cook raw foods.

C．Active approaches to avoid acid.

D．Suitable types of raw and whole foods.

城市燃气按照燃气类别分类，可以分为( )三类。

A．人工燃气、天然气、液化石油气
B．人工燃气、水煤气、油田伴生产
C．焦炉煤气、天然气；人工燃气
D．人工燃气、天然气、水煤气

硫化铜精矿造锍熔炼的目的及必须遵循的两个原则