This signs in America represents:

Whilethefreehealthcliniccosts$1milliontooperate,itis$500000lessthanthecoststhecompanywouldrealizeifemployeesweretreatedelsewhere.

Whatisthemainadvantageofradioads:（）

The company also offers an exercise physiologist to help employees suffering from stress.

What ’ s the meaning of money in the 5M ( ) .