生活饮用水中氯化物的测定方法是()
A.4-氨基安替比林氯仿萃取分光光度法
B.亚甲蓝分光光度法
C.铬酸钡分光光度法
D.硝酸银滴定法
E.异烟酸-吡唑酮分光光度法
参考答案:D
______ on top of the hill,you can get a good view of the whole city.
A.Stood
B.Stand
C.To stand
D.Standing
—Tom, I'm watching a football match. What about you?
—_________.
A.So do I
B.So am I
C.So I do
D.So I am