单项选择题
A.0~100℃,0.1℃ B.0~50℃,0.2℃ C.0~50℃,0.1℃ D.0~100℃,0.2℃
A.10~35℃;±0.5 B.10~35℃;±0.2 C.25~35℃;±0.5 D.10~35℃;±0.1
A.煤的热稳定性 B.煤的结焦性 C.煤的孔隙率 D.煤的燃点