单项选择题
A.0.5%～±l.0% B.+1.0%～±1.5% C.±1.5%～±2.0% D.+1.0%～±2.0%
A.±0.075% B.±0.5% C.±1.0% D.±1.5%
A.±2.5℃或0.75%t B.+1.5℃ C.+1.0℃ D.±0.25%t
A.压力变送器 B.差压变送器 C.旋涡流量计 D.电磁流量计
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