"Sister, how is the situation in Africa now?" Thinking of Alice and the five of them, Zhang Lan asked.

"I've just arrived in Africa, and I'm going to find some weapons and equipment." Xiao Chenxi is very relaxed.

"Where to look?"

"There are many places to go, but it seems that there are the most military camps, and it is estimated that it is enough for them to use a little bit of a random military camp to steal a little." Xiao Chenxi replied indifferently.

"Oh, it won't cause any trouble, will it?" Zhang Lan was a little sweaty, she said it so easily, stealing a military camp seemed to be easier than entering her own house.

"No, what's the trouble? At most, it's just a matter of killing a few people! Seeing Zhang Lan glaring at herself with an unhappy face, the little girl hurriedly raised her hand in surrender, "I know, I know, you can't kill people casually, find someone You've already said N times, how could I forget to tell them?" They won't kill unless they have to. ”

"Oh, that's fine." Zhang Lan breathed a sigh of relief slightly, hoping that these lawless guys wouldn't cause any big trouble, right?

With the help of Xiao Chenxi's cheating ability, the sister and brother quickly beat down 2 pheasants, knocked out a hare, and swayed down the mountain with a snake.

Suddenly, Zhang Lan remembered that there seemed to be a mountain spring in front of the foot of the mountain, the water output of the mountain spring was very large, and it did not stop all year round, and the temperature of the spring water was almost constant all year round, and the water temperature was kept at about ten degrees Celsius all year round. The most important thing is that the water quality of the mountain spring water is very good, and there is a slight sweetness in the coolness, which responds to the sentence: farmer, the mountain spring is a little sweet.

The two of them discussed it for a while and decided to go over and have a look.

The spring is not very close, Xiao Chenxi is okay to say, Zhang Lan is a little troublesome, so a little little guy walks really slowly, and finally Zhang Lan is lazy, let Xiao Chenxi hold himself, this time finally sped up, and arrived at the foot of the mountain where the spring is located after ten minutes.

The water bubbled out from a spring the size of a sea bowl, and below the spring, the water that flowed down formed a small lake on the top of the depression, and the water was so clear that you could see the aquatic plants and small fish swimming freely with the current under the water.

After climbing the mountain for a long time, Zhang Lan was also a little thirsty, rushed over and washed his face indiscriminately, the cold spring water touched the slightly hot skin, under the effect of heat expansion and cold contraction, the skin began to tighten slightly, and it felt quite enjoyable.

Scooping up the water and taking a sip, Zhang Lan nodded, yes, it's still that feeling, cool and sweet, much stronger than the tap water in the city that has used bleach.

Taking out a coin, the little guy smiled at Xiao Chenxi and said, "Sister, can I give you a magic trick of transformation?" ”

"What magic?" Xiao Chenxi was curious.

"See this coin in my hand?" Zhang Lan raised her hand, allowing Xiao Chenxi to see clearly a five-cent coin in her hand.

Carefully sweeping the coin in Zhang Lan's hand, Xiao Chenxi nodded, "That's right, it's a five-cent coin, there is no problem at all." What do you want to do with it? ”

"I can make this coin float on the water, believe it or not?" Zhang Lan said with a smile.

"You just talk about it," the little girl pursed her lips, looking disbelieving, "What about the liar, the specific gravity of the coin is much heavier than water, and the buoyancy is not enough, how can it float on the water?" ”

"Look." Zhang Lan didn't argue, and carefully put the five-cent coin on the water, and a miracle really happened, the coin really floated on the water and didn't sink.

"How is this possible? How did you do that? Xiao Chenxi exclaimed in surprise, her eyes popping out.

"Sure enough." Zhang Lan breathed a sigh of relief, exactly the same as he guessed, this mountain spring is indeed a mineral water spring. One of the easiest ways to verify whether the water is mineral water is to take a coin and carry out a light water test, the surface tension of mineral water is large, if it is mineral water, the coin can float on mineral water, but not on the general drinking water.

In his previous life, Zhang Lan had always suspected that this mountain spring was a mineral spring exposed to the surface, you must know that mineral water is generally buried deep underground, and there are very few on the surface, and the most important point of drinking mineral water is that there can be no pollution nearby, and no matter how good the spring water is, it cannot be used. It's a pity that the conditions in the previous life were not available, and even if it was confirmed, Zhang Lan did not have enough ability to develop this resource.

Regular consumption of mineral water can play a role in replenishing minerals, especially trace elements. Drinking mineral water in the middle of summer to replenish the minerals lost due to sweating is an effective means.

Long-term drinking of mineral water does have a more obvious nutritional and health care effect on the human body. Taking metasilicic acid, lithium and strontium, which have more natural mineral water content in China, as an example, these elements have similar biological effects to calcium and magnesium, which can promote the growth and development of bones and teeth, help bone calcification, and prevent osteoporosis; It can also prevent hypertension, protect the heart, and reduce cardiovascular and cerebrovascular morbidity and mortality. Therefore, the content of metasilicic acid is one of the most commonly used and important cut-off indicators to evaluate the quality of mineral water in countries around the world. Lithium and bromine in mineral water regulate the activity of the central nervous system, have a calming and calming effect. Long-term drinking of mineral water can also supplement the deficiency of calcium, magnesium, zinc, selenium, iodine and other nutrients in the diet, and also has a good effect on enhancing the body's immune function, delaying aging, preventing tumors, preventing hypertension, gout and rheumatic diseases. In addition, the vast majority of mineral water is slightly alkaline, which is suitable for the physiological characteristics of the human internal environment, which is conducive to maintaining normal osmotic pressure and acid-base balance, promoting metabolism and accelerating fatigue recovery.

Generally speaking, as long as it is within the national standard for drinking mineral water, mineral water is of great benefit to the human body.

"I see." When Zhang Lan finished explaining to Xiao Chenxi, Xiao Chenxi finally understood that it turned out to be a mouthful of mineral water.

"Sister, can you help me test the mineral content in the water?" Zhang Lan requested.

"It's easy, wait a minute." Saying that, Xiao Chenxi took a sip of water, put it in his mouth, spit out the water for a while, and told Zhang Lan, "The zinc content in this water is 4.5mg/L, the copper content is 1.0mg/L, the barium content is 0.70mg/L, the cadmium content is 0.010mg/L, the chromium (Cr6+) content is 0.050mg/L, the lead content is 0.010mg/L, and the mercury content is 0.0010mg/L." How, what's the situation? ”

"It's pretty good mineral water!" Zhang Lan hugged Xiao Chenxi excitedly, "Sister, let's send it now, in the future, we can sleep until we wake up naturally, count the money and count until our hands cramp." ”

"Uh...... Why? The little girl looked puzzled.

"Sell water," Zhang Lan replied excitedly, fuck, Nongfu Spring can earn more than a billion a year by buying water, and now that mineral water is in front of him, can he still run away from a great opportunity to make money?

"Can water be sold for money?" Xiao Chenxi was curious.

"Don't worry," Zhang Lan was confident.

Nongfu Spring, I'm sorry, Zhang Lan silently apologized to the other party in her heart, the position of the drink boss, I'm sorry, I'll sit first.