THE OVERALL EFFIENCY OF A SYSTEM CAN BE ______THAT OF ITS WEAKEST...

42. - DE CUONG HK2 CO DAP AN
DE CUONG HK2 CO DAP AN

42. The overall effiency of a system can be ______that of its weakest element.

A. no greater than B. less greeater C. nothing as greater as D. not the greater