Examlex
A church has 8 bells in its bell tower. Before each church service 3 bells are rung in sequence. No bell is rungmore than once. How many sequences are there?
Heart Attacks
A medical condition characterized by the sudden blockage of blood flow to the heart, leading to heart muscle damage.
Stomach Ulcers
Open sores that develop on the lining of the stomach due to damage caused by stomach acid or infection, often leading to pain and discomfort.
Respiratory Infection
An infection of the respiratory system, including the lungs, throat, airways, and sinuses, often caused by viruses or bacteria.
Lymphocytes
A type of white blood cell involved in the body's immune response, including T cells, B cells, and NK cells.
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