The base unit for length is typically meters and temperature is kelvin
...a variety of different mass units are used, depending on context, such as the slug (sl), the pound (lb)...
Yes, the SL option is available. There are 3 papers for the subject (as for the 2014 curriculum).
I don't know about SL. If you mean SI, the unit of power is the watt (equal to joules/second).
The SI unit of time is the second.
Different units are used. From Wikipedia: "The term [magnetic field] is used for two distinct but closely related fields denoted by the symbols B and H, where H is measured in units of amperes per meter ... B is measured in teslas (symbol:T) and newtons per meter per ampere(symbol: N·m−1·A−1 or N/(m·A)) in the SI. ..."
Derived units
An expanded metric system called the International System of units.
The standard unit of length is the meter (m).
The 2009 Mercedes-Benz SL-Class has a 5.5 L base engine size.
The 2004 Mercedes-Benz SL-Class has a 5.0 L base engine size.
The 2007 Mercedes-Benz SL-Class has a 5.5 L base engine size.
The 2014 Mercedes-Benz SL-Class has a 8 ft. 5.8 in. (101.8 in.) wheel base.
The 2005 Mercedes-Benz SL-Class has a 8 ft. 4.8 in. (100.8 in.) wheel base.
The 2006 Mercedes-Benz SL-Class has a 8 ft. 4.8 in. (100.8 in.) wheel base.
The 2004 Mercedes-Benz SL-Class has a 8 ft. 4.8 in. (100.8 in.) wheel base.
The 2005 Mercedes-Benz SL-Class has a 5.0 L base engine size.
The 2011 Mercedes-Benz SL-Class has a 8 ft. 4.8 in. (100.8 in.) wheel base.