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【单选题】
假设2010年某国一单位A商品，其价值用货币表示为150元。如果2011年生产A商品的社会劳动生产率提高50﹪，且该国的货币价值贬值20﹪，在其他条件不变的情况下，2011年一单位A商品的价值用货币表示为（）元。A.
150
B.
75
C.
120
D.
125
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