A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: ">定额是在正常施工条件下的消耗标准；</span><span style="FONT-SIZE: 12pt" lang="EN-US"></span><p></p><p></p>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: ">定额应随着劳动生产率的变化而变化；</span><span style="FONT-SIZE: 12pt" lang="EN-US"></span><p></p><p></p>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: ">定额是一成不变的消耗标准；</span><span style="FONT-SIZE: 12pt" lang="EN-US"></span><p></p><p></p>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: ">我国在很早以前就存在着定额制度。</span><span style="FONT-SIZE: 12pt" lang="EN-US"></span><p></p><p></p>