【单选题】能确定平行四边形的大小和形状的条件是 [ ]
【单选题】下列选项中,不属于水磨石面层主控项目的是()
A.
水磨石面层的石粒,应采用坚硬可磨白云石、大理石等岩石加工而成,石粒应洁净无杂物
B.
水磨石面层拌和料的体积比应符合设计要求,且为(1:1.5)~(1:2.5)(水泥:石粒)
C.
楼梯踏步的宽度、高度应符合设计要求,楼层梯段相邻踏步高度差不应大于10mm,每踏步两端宽度差不应大于10mm,旋转楼梯梯段的每踏步两端宽度的允许偏差为5mm
【单选题】Lily is very shy, she is afraid of speaking in public, she doesn't know how _____ her speech in front of her schoolmates. [ ]
【单选题】Here's a _____ in our office that when it's somebody's birthday, they bring in a cake for us all to share. [ ]
【单选题】Lily is very ( ) in English classes.
【简答题】能确定平行四边形的大小和形状的条件是 [ ] (A)已知平行四边形的两邻边 (B)已知平行四边形的相邻两角 (C)已知平行四边形的两对角线 (D)已知平行四边形的一边、一对角线和周长
【单选题】水磨石主控项目面层与下一层结合应牢固,且应无空鼓、裂纹。当出现空鼓时,空鼓面积不应大于400cm2 ,且每自然间或标准间不应多于( )处