### quotation marks:

Double quote
* are quotation marks.
* have no special meaning for symbols composed of ordinary letters.

R group
* Some R groups are hydrophilic, some are lipophilic.
* are radical groups, representative groups or reactive groups
  - straight chain hydrocarbons
* can be polar, non polar, acidic or basic.

Race relation
* are a touchy subject as well are gender relations and varying sexual orientation.
* complex issue for many countries.
* is as complex as all of human nature.
* major issue in the world.

### racial profiling:

Immigration policy
* involves law enforcement, economic regulation, and foreign policy.
* is racial profiling.

### racing:

Auto racing
* are motor racing
  - sports
* dangerous sport, as is anything in life
* has a family of cultures.
* high-risk sport.
* is also popular at the grassroots level
  - an inherently dangerous sport
  - hard on marriages and families, and so many couples end up getting a divorce
  - like horseracing
  - no different from pro football or any other sport
  - one of the oldest forms of sports marketing
  - said to be the fastest-growing spectator sport in the nation
* is the fastest growing sport in America today
  - world's most popular spectator sport
* sport whose time has come and gone.
* takes skill and concentration.
* world full of big dreams, big disappointments and big accomplishments.
+ São Paulo (state), Sports
  * Auto racing is a staple of the paulista's way of life. The state has produced several racing drivers that have attained international fame.

Car racing
* are racing.
* is also popular in France
  - one of the newest and most frequently witnessed forms of squirrel hazing
* is, perhaps, the first cybernetic sport.

### racing:

Horse racing
* Saratoga Springs annual tradition.
* are racing
* has a large tourism impact
  - one foot in the grave, and another on a banana peel
* highly regulated industry, as are other forms of legalized gambling.
* historic and beloved past-time in the American culture.
* is also popular in the rural areas
  - among the nation's largest spectator sports
  - based on the pari-mutual system of betting
* is one of the few 'mixed' sports where men and women compete head to head
  - most dangerous sports
  - sport in which owners, trainers and jockeys always look for the positive
* is the only sport where the athletes pay their fans
  - second most widely attended U.S. spectator sport, after baseball
  - third-largest industry in the state of New Mexico
* major enterprise, indeed a complete industry in non-Muslim countries.
* national passion.
* popular spectator sport in Britain
* requires raising, training, feeding and breeding horses.
* small percentage of Internet gambling.
* traditional part of many holiday celebrations.

### radio broadcasting:

Ham radio
* are radio broadcasting.
* hobby dating back to the early part of the century.
* is for anyone who likes to communicate with others via wireless technology
  - still the only means of communication with the outside world
* myriad of people with varied interests.

### radio transmitters:

Cordless phone
* All cordless phones are radio transmitters.
* Some cordless phones allow multiple handsets and charging cradles
  - run on the same frequency as the laptops
* allow users to roam a short distance from the phone's base.
* can also pick up other people's conversation
  - cause slow modem speeds by introducing interference on the phone
* cause disconnects.