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Prepare 1 part solution.
1。Measure out filtered water (distilled water) that is 5% smaller than the volume of the solution you made. Try to use a container that is close to the volume of the solution.
2。Add the powdered solute into the solution at 15-30 degrees Celsius (room temperature) and stir slightly (do not heat).
3。Rinse the solute of all the powder in the package into the solution.
4。Add g of baking soda * sodium carbonate) into the solution.
5。Dilute the solution with distilled water until the appropriate volume and stir until dissolved.
6。To prepare the pH of the solution to be smaller than the final pH, it is recommended to use 1N (1 mol L) HCl (hydrochloric acid) to slowly add and stir. When the pH is adjusted, close the container and know that the solution has been filtered.
7。Sterilized by membrane filtration (using positive pressure).
The pH usually rises after filtration.
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In adolescence, we want to be adults, but when we are young, we want to be back to our youth and we can be out there and have our own money. However. They realize that love can be heartbreaking, and playing outside late affects the next morning's work.
They find that life as an adult is not as easy as they think, sudden, life or apprehensive.
Life is just. It gives us time to play, but at the same time it requires us to work. We have to grow, and we always want to enjoy our youth more.
Those times are gone. It's normal for us to crave what we don't get, but the truth is that happiness is cherishing what we have. This is the first step to growth.
When life gets more and more complicated, we don't regret the time we spent wishing we were adults.
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That must have been after reading twice in the newspaper until finally the gues had their vacation, and although we had been enjoying their company, my wife and I were very grateful to them for closing the door behind them.
We left all the dirty dishes and cups as they were, and after opening a few windows to let in some fresh air and the smell of stale tobacco, we climbed into bed and fell asleep for more than half an hour when I woke up with the strong smell of smoke in my nostrils. But hectare fell asleep and I wobbled into the lounge, and with thick smoke through the clouds, I saw a curtain on fire. I should have closed the window, and then without delay, but I tried to beat the flame of the same folded newspaper.
When this failed I walked into the kitchen and grabbed a bucket full of water to be accelerated. At the same time, I called Barbara, who rushed to call 999 to come to my help summon fire b rigade. We must work with the highest speed from the kitchen to prevent the flame of the bucket from the speed of the water, inflamed by the wind and the preading of the window.
We couldn't put out the fire, but we managed to keep it in the inspection section until the arrival of firefighters. Fort unately, they came with little difficulty in quickly extinguishing the flames. For this day, we strive for the rest of the majority.
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His parents were told to take him home after his rare death leukaemiareturned for the third time. "They said there was nothing they could possibly do anymore and gave him a few weeks to live. His mom said.
26 Claire, but that was 6 months ago, so it's up to him! No one can explain why the cancer suddenly disappeared. of surgeons would call me to give me the news to show that he still couldn't believe the fact.
I just burst into tears."
Jordan, and now, the three families began their own amazing battle with leukemia, only 10 weeks old Claire and her husband Gery were about 30 years old. They told their son that he had only a 10% chance of survival. Jordan endured six months of chemotherapy despite being the youngest cancer patient at Yorkhill Children's Hospital doctors in Glasgow.
71 He had a bone marrow transplant in April 2006 and it seemed that the cancer was gone.
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The above are all directly posted translations** of the ......It's all semantic, I translated it myself.
After learning again that he had a rare case of leukemia, his parents were told to take him home to die, "they said they had nothing left to do, and he had only a few weeks to live." His mother, 26-year-old Claire, said, "But that was 6 months ago, now look at him!" No one can explain why the cancer suddenly disappeared.
The surgeon who told me the news said he still couldn't believe it, and I burst into tears. ”
Jordan, now three years old, has been battling leukemia since he was ten weeks old. Claire and her husband, Gray, in their 30s, were told that their son had only a 10% chance of surviving. As the youngest cancer patient at Yorkhill Children's Hospital in Glasgow**, Jordan endured six months of chemotherapy.
After he received a bone marrow transplant in April 2006, it seemed that the cancer was gone.
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After his parents were told to take him home, he got the fatal rare leukemia (leukemia) for the third time. "They said there was nothing they could do more and gave him a couple of weeks," his mom, Claire, 26. "But, half a year ago, just look at him!
No one can explain why the cancer suddenly disappeared. The surgeon who called ** gave me the news, and he couldn't believe it. I burst into tears.
Jordan, now three years old, at the beginning of his ten weeks of age with leukemia showed amazing combat effectiveness. Claire and her husband Gehry, 30, were told their son had only a 10 chance of survival. Jordan will have six or seven months of chemotherapy (chemotherapy) despite being the youngest cancer patient with doctors in Yorkshire.
The Children's Hospital used to be in Glasgow**. After he had a bone marrow transplant in April 2006 (bone marrow transplant) and it seemed that the cancer was gone.
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1.Answer: a
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