单项选择题
A.1.54% B.1.57% C.98.5%
A.603.485kgce B.83.492kgce C.14.41kgce D.6.264kgce
A.≤350千克标煤/吨 B.≤530千克标煤/吨 C.≤810千克标煤/吨