如果装有30min最大需量表，应将其指示数乘以2.04--2.10才能等同15min内平均最大需量表的记录
参考答案：错
—Mr. Wang’s never been to Canada, has he?
— . He went there on business last week.
A．No, he hasn’t
B．Yes, he has
C．No, he has
D．Yes, he hasn’t
某仓库要存放一台自重30吨的设备，该设备底架为两条2m×0.2m的钢架。该仓库库场单位面积技术定额为3吨/m2。要垫（）块2m×1.5m、自重0.5吨的钢板。
A.0块
B.2块
C.3块
D.4块
