单项选择题X 纠错
A.50%、3次、10s B.60%、3次、10s C.70%、3次、10s D.80%、3次、10s
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单项选择题
A.1%,±0.25% B.0.5%,±0.25% C.1%,±0.5% D.0.5%,±0.5%
A.±0.5% B.±1% C.±1.5% D.±2%
A.+5% B.+10% C.+15% D.+20%
A.0.1%~0.5% B.0.3%~1% C.0.5%~1% D.0.8%~1%
A.20%,110% B.20%,100% C.50%,110% D.50%,100%
A.0%~50% B.50%~90% C.70%~100% D.70%~110%
A.0.5 B.1 C.1.5 D.2
A.70% B.80% C.90% D.100%
A.1.1 B.1.2 C.1.3 D.1.4
A.1倍、5s B.2倍、10s C.1倍、10s D.2倍、5s
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