单项选择题
国家标准规定,一等指针式石英手表和一等液晶式石英手表的电压系数应满足()。
A.-0.8s/(d·V)~0.8s/(d·V)
B.-1.5s/(d·V)~1.5s/(d·V)
C.-2.0s/(d·V)~2.0s/(d·V)
D.-2.5s/(d·V)~2.5s/(d·V)
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单项选择题
A.-0.8s/(d·V)~0.8s/(d·V)
B.-1.5s/(d·V)~1.5s/(d·V)
C.-2.0s/(d·V)~2.0s/(d·V)
D.-2.5s/(d·V)~2.5s/(d·V)
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