【单选题】Compared to those of the ballet, Isadora Duncan's costumes were less ______.
【判断题】单元体任意斜截面上的应力,它们在σ-τ坐标平面内对应的点必位于由三个主应力确定的应力圆所构成的区域内。
【判断题】单元体任意斜截面上的应力,它们在正应力与切应力坐标平面内对应的点必位于由三个应力圆所构成的区域内。
【判断题】Isadora Duncan is the Mother of Modern Dance.
【判断题】Isadora Duncan is the Mother of Modern Dance. ( )
【单选题】标准麻花钻的顶角是指两主切削刃在其( )投影的夹角。
【单选题】Some of the musical pieces for______Isadora Duncan choreographed dances were waltzes and mazurkas by Chopin.
【单选题】Isadora Duncan was inventor of the American .