第二章
Which of the following is the right definition of ‘safety factor’ in engineering? ( )
θx/[θxmin]lim
S0/Smin
 θx/θxmin
答案:θx/θxmin
The decay of active biomass is a first-order function, including the fraction for true respiration and for inert. ( )
答案:对
Solids retention time or sludge age is the reciprocal of the net specific growth rate. ( )
答案:对
UAP is biodegraded considerably faster than is BAP. ( )
答案:对
The true yield cannot be estimated from experiments. ( )
答案:错

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