Internet is a useful tool in our daily life, but it shouldn't take the place of our ____ life. [ ]
A.
original
B.
natural
C.
exact
D.
real
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参考答案:
举一反三
【单选题】The chloride-bicarbonate exchanger as an antiport mediates the simultaneous movement of two anions: for each ion that moves in one direction, one Clˉ ion moves in the opposite direction, with no net t...