具有清热化痰，除烦止呕功效的药物是
A．枇杷叶
B．淡竹叶
C．竹茹
D．芦根
E．天花粉
参考答案：C
There is clear evidence _____ the most difficult feeling of all to interpret is bodily pain. [ ]
A. what
B. if
C. how
D. that
物流信息的作用有哪些？
