找考题网-背景图
单项选择题

国家标准规定,优等指针式石英手表和优等液晶式石英手表的温度系数应满足()。

A.-0.10s/(d·℃)~0.10s/(d·℃)
B.-0.12s/(d·℃)~0.12s/(d·℃)
C.-0.15s/(d·℃)~0.15s/(d·℃)
D.-0.20s/(d·℃)~0.20s/(d·℃)