Chemically induced colon carcinogenesis in rodents is also suppressed by _____ of NSAIDs.

Food is broken down both physically and chemically in the process called____.

( ) are organic compounds that are chemically based on carbon, hydrogen and other nonmetallic elements.

When different elements are chemically combined, with the atoms held together by chemical bonds, they form chemical__5___.

Which of these is the most complete list of the agents of metamorphism, the agents that drive metamorphic transformations in rocks? A: pressure, temperature, heat B: chemically active fluids, pressure, differential stress C: heat, differential stress, chemically active fluids D: heat, pressure, parent rock

在PubMed中查找阿司匹林诱发消化道出血的文献,应采用的检索式为 ( ) A: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/chemically induced"[Mesh] B: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/etiology"[Mesh] C: ("Gastrointestinal Hemorrhage/adverse effects"[Mesh]) AND "Aspirin/chemically induced"[Mesh] D: ("Aspirin/therapeutic use "[Mesh]) AND "Gastrointestinal Hemorrhage/chemically induced"[Mesh] E: ("Aspirin/adverse effects"[Mesh]) AND "Gastrointestinal Hemorrhage/therapy"[Mesh]

Fuel is (any) substance or material (that reacts) chemically (with) another substance or material to produce (hot). A: any B: that reacts C: with D: hot

6. Partial pressure of arterial blood oxygen refers to A: Oxygen partial pressure when oxygen saturation of hemoglobin is 50% B: Tension caused by oxygen molecules dissolved in arterial blood C: Hemoglobin and oxygen binding capacity D: The actual number of milliliters containing 02 in 100ml of blood E: Tension created by chemically bound oxygen in the blood

Partial pressure of arterial blood oxygen refers to ( ) A: Tension caused by oxygen molecules dissolved in arterial blood B: Oxygen partial pressure when oxygen saturation of hemoglobin is 50% C: Hemoglobin and oxygen binding capacity D: The actual number of milliliters containing 02 in 100ml of blood E: Tension created by chemically bound oxygen in the blood

As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through lift, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is an natural part of everyday lift and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health. The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form,we react both chemically and physically. In fact we make choice between “fight” or “flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long,through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress.Since we cannot remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.