锅炉低温腐蚀
参考答案:
锅炉尾部受热面的硫酸腐蚀,因为尾部受热面区段烟气管壁温度都较低。
It is one of the funniest things_______on the lnternet so far this year. [ ]
A. finding
B. being found
C. to find
D. found
诃子的功效有
A.敛肺
B.利咽
C.下气
D.涩肠
E.缩尿