正弦交流电的三要素是指:有效值、频率和周期。
参考答案:错
下列中指标中,不是评价单位工程施工进度计划质量的指标为( )。
A.(A) 工期
B.(B) 资源消耗的均衡性
C.(C) 主要施工机械的利用率
D.(D) 劳动消耗量
A.They considered her lazy.
B.They saw something they had never seen.
C.They considered her foolish.
D.They saw something familiar to them.