电化学分析仪器所使用的电极中,常用的内参比电极是()
A.铂电极
B.银电极
C.银-氯化银电极
D.甘汞电极
E.饱和甘汞电极
参考答案:C
—Are there _______ chairs in the room? —Yes, there are _______. [ ]
A. some; any
B. any; some
C. some; some
D. any; any
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