Without electrical, mechanical, gravitational, surface tension and motion effects, a system is called _____ system.  A. Simple  B. Simple compressible  C. Compressible  D. Independent

Without electrical, mechanical, gravitational, surface tension and motion effects, a system is called _____ system.  A. Simple  B. Simple compressible  C. Compressible  D. Independent
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Simple compressible
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