麻风的病原菌是________，用_______染色法呈________色。
参考答案：麻风分枝杆菌｜抗酸｜红
Have you seen Henry lately? My boss wants to know ______.
A．how is he getting along
B．what is he getting along
C．how he is getting along
D．what he is getting along
当一煤样的挥发分大于40％时，则不同实验室的允许差为（）。
A.0.5
B.1.0
C.1.5
