混匀时间不变，圆筒混合机内物料（）增大，虽然能够提高产量，但由于料层增厚，物料的运动受限制和破坏，因此对混匀和造球是不利的。
参考答案：流量
—How's this pink evening dress? I wear it to the party _______ shall I choose that white one?
—They both look beautiful, but I think your blue dress is suitable.
A．Must; or; fairly
B．May; and; much
C．Shall; and; very
D．Shall; or; more
模板支架立杆自由端高度应经设计确定，且碗扣架不大于（）mm，扣件式钢管架不大于（）mm。
A.800；600
B.600；800
C.700；500
D.500；700
