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【简答题】
参比电极是与被测物质无关,电位 且稳定 。提供测量电位参考的 电极。
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反馈参考答案：
举一反三
【简答题】完形填空。 Curt and I have this kind of friendship that I wish everyone would be able to experience. Our friendship 1 many years ago. We met while 2 different high schools. As years passed, we became good ...
【单选题】I’ve kept up a friendship with a girl whom I was at school ________ twenty years ago.
A.
till
B.
with
C.
about
D.
since
【单选题】I've kept up a friendship with a girl whom I was at school ______ twenty years ago.
A.
about
B.
since
C.
till
D.
with
【单选题】关于下颌第一前磨牙牙体形态,描述错误的是
A.
颊舌径与近远中径相近
B.
颊尖长大舌尖特小
C.
横嵴是其重要解剖标志
D.
牙合面上远中窝小，近中窝大
E.
扁而细长的单根，近中面根尖部常有分叉痕迹
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