单项选择题
影响单桩承载力的因素不包括( )A.桩身材料强度 B.桩端持力层的性质 C.桩顶荷载大小 D.桩的施工工艺
单项选择题影响单桩承载力的因素不包括( )
下列措施中,能降低保本点的有()。A.提高销售量B.降低固定成本C.降低单位变动成本D.提高销售单价
未知题型下列措施中,能降低保本点的有()。
According to the lecturer, the central idea of a speech...
单项选择题According to the lecturer, the central idea of a speech quite often appears _____ of the speech. A、at the beginning B、in the middle C、in the conclusion D、in an unexpected part