下列检查哪项对诊断最有意义
A．血沉B．痰细菌培养C．痰抗酸杆菌检查D．血培养E．纤维支气管镜
参考答案：C
Which of the following city is located in Europe
A．Bangkok
B．Chicago
C．New York
D．Oslo
煤粉的水分指标是多少？
