白芥子具有的功效是
A．温肺祛痰，利气散结B．化痰止咳，和胃降逆C．消痰行水，降气止呕D．降气祛痰，宣散风热E．燥湿化痰，祛风止痉
参考答案：B
教育费附加是随地方税征收的一种地方附加。( )
Though the situation is rather serious, financial leaders are still ________ about global economy.[ ]
A. positive
B. negative
C. active
D. passive
