A: For fruits with poor natural coloring, artificial coloration can be done by selecting a dry, flat, well-ventilated place with 3 cm of fine sand or grass, with the top of the fruit up, the handle down, and the single-layer flat pendulum. On the surface of sand, the light is exposed during the daytime. From 9am to 4pm, the fruit surface is covered with a mat to prevent sunburn. After four days and nights, the fruit can reach the desired shade.
When human beings have experienced disasters, we know that life and health are so precious.
dizziness and restlessness.
of human survival.
• Benefits of Oxygen:
Inhalation of oxygen can improve the level of arterial blood oxygen partial pressure and oxygen
saturation of the body, in addition to promote the metabolism of the body, and is also one of the very
important methods for auxiliary treatment of a variety of diseases. Oxygen inhalation can make the
oxygen in the human tissue more abundant, cells will get sufficient oxygen supply after the
metabolism will be more active, normal people will have a refreshed, memory improved, spirit feeling.
Patients with chronic heart and lung diseases, long-term oxygen inhalation can delay the aggravation
of the disease, at the same time, but also can relieve the symptoms of chest tightness, wheezing and
dyspnea of patients. Especially when working under great pressure, they are prone to dizziness,
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