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【单选题】
一有色溶液对某波长光的吸收遵守比耳定律,当选用 2.0cm 的比色皿时,测得透光率为 T ,若改用 1.0cm 的吸收池,则透光率为:
A.
T 2
B.
T 1/2
C.
2T
D.
T/2
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