金的化合物容易别还原成金属金,能被金还原的金属有()
A.汞
B.镁、锌
C.铜
参考答案:B
牛腭扁桃体位于()
A.喉咽部
B.口咽部侧壁
C.舌根部背侧
D.软腭口腔面
E.鼻咽部后背侧壁
We haven't decided _____ next year. [ ]
A. how to do
B. what to do
C. where to go to