True allergies to cow's milk are relatively uncommon. Only 2 to 3 percent of children are allergic to milk, according to the AAP, and almost all of them outgrow it by age 3. (Learn the difference between a milk allergy and lactose intolerance .).
The underscore [ _ ] (also called underline, underbar, low line, or low dash) is a character that originally appeared on the typewriter and was primarily used to underline words.
The underscore is on the letters page by the space bar. There is NO underscore key on the iPad 2 whatsoever!! There is a now you see me now you don't underscore key. It depends on what app you are using.