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КРОК / KROK
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What monomer is the basis for natural rubber?
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An alkali was added into the solution being analyzed. When heated, the solution produced a gas. This gas changes the color of a moist litmus paper from red to blue, which indicates the presence of the following ions in the solution:
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People, who were in the building during a fire, suffer from carbon monoxide poisoning. What type of hypoxia can be observed in this case?
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What end product forms as a result of beta-oxidation of fatty acids with an odd number of carbon atoms?
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Protein-containing liquids, where proteins must remain undenatured, undergo sterilization at the temperature of 56-58^oC in several 60-minute-long sessions over the course of 5 days. What method of sterilization is it?
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A 15-year-old girl complains of general weakness, dizziness, and frequent fainting spells. She does not eat enough. Recently, she has been noticing a distortion of taste, a desire to eat chalk and raw minced meat. Her menstruations have been occurring since the age of 13 and are profuse and irregular. What substance causes sideropenic syndrome if its levels in the human body are low?
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For tetanus prevention a certain toxin is used. This toxin is being inactivated with formaldehyde (0.4%) under the temperature of 39^oC over the course of 4 weeks. Name the resulting preparation.
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What method of microspecimen staining can be used to detect Mycobacterium tuberculosis?
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What is the name of the five-membered heterocycle that contains nitrogen heteroatoms of the pyrrole and pyridine type?
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After being stung by bees, the patient developed Quincke's edema. What drug should the patient be urgently administered for the treatment of this condition?
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