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How to get your dog to be nice to strangers
Notice any people your dog dislikes.
Your dog may react negatively to certain groups of people, including men, women, people of color, or even people in hats. If you notice which groups your dog reacts negatively towards, you can try to change this negative association for your dog.
A: Your dog may have many reasons for this negative association. If you got the dog from a shelter or as an adolescent, they may have had bad experiences in the past with specific groups of people.

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How to keep kids' teeth strong
Start early.
Children should start having their teeth brushed as soon as their first baby teeth appear. This should also be when they first visit the dentist.
A: Lean your child against your lap or arms. Using a small toothbrush, take a rice-sized amount of fluoride toothpaste, and gently brush the child's teeth.

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How to become a cardiologist
Look into potential medical schools.
You may already know exactly where you want to go to medical school, but if you don't, you should start looking at the possibilities as soon as possible. This will be very similar to your experience searching for an undergraduate program.
A: Don't just pick the top medical school in the country for that reason. Instead, search for a school that will be a good fit for your long-term goals, financial limitations, and personality.

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How to determine the quality of a stereo
Look for stereos with full-dynamic range.
" range " essentially refers to how many types of sounds a stereo receiver can produce. Systems with a " full " range (between 20-20 , 000 hz) will sound much more crisp and detailed than those with restricted ranges.
A:
This is one of the most important factors in determining overall quality. You can usually find a stereo's audio specifications on the packaging, or somewhere on the unit itself.