下列哪种焊接方法可能存在射线危害()
A、手工电弧焊
B、二氧化碳气体保护焊
C、钨极氩弧焊
参考答案:C
下列属于治法的是()
A.未病先防
B.治病求本
C.滋阴养血
D.扶正祛邪
E.调整阴阳
—Whose jacket is this? Is it Mr Wang's?
—No. ________ is on the desk. [ ]
A. Him
B. His
C. He