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【单选题】
pHS-2型酸度计是由( )电极组成的工作电池。A.
甘汞电极一玻璃电极
B.
氯化玻璃电极
C.
甘汞电极一银一氯化银
D.
甘汞电极一单晶膜电极
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反馈参考答案：
举一反三
【简答题】Write down some words with the prefix "de"
【单选题】We are often cheated by some words in that______
A.
their dominant meanings have not been determined
B.
sometimes they mean something different from their dominant meanings
C.
our natural impulse makes a mistake
D.
the dominant sense of a word is not accurate in our minds
【简答题】汽车电气设备的电系具有 、 、 和 四个特点。
【单选题】Some words are hard to ______ because they have many different uses.
A.
express
B.
explain
C.
define
D.
describe
【单选题】---Could I use your dictionary to look up some new words ? ---OK, ________.
A.
that’s all right
B.
that’s right
C.
it’s a pleasure
D.
help yourself
【简答题】当MCS-51引脚 信号有效时,表示从P0口稳定地送出了低8位地址.
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