法半夏的炮制作用是()
A.长于化痰散结
B.以燥湿化痰为主
C.增强降逆止呕作用
D.增强祛风痰作用
E.燥湿化痰兼调和脾胃
参考答案:E
Many people in China have never dreamed of ______ a chance for them to learn to drive after their retirement.
A.being
B.there
C.there to be
D.there being
罗茨鼓风机产品型号为D60*78-200/3500,其中60表示()。
A.叶轮直径
B.出口静压力
C.流量