采用工作应变计温度互补时，试件材料应为非匀质材料。( )

In Paragraph 4, the author implies that the alliance of Starbucks and Square______.A．may create a whole-new mobile payment systemB．may have stimulated the alignment of the big retailersC．may accelerate the development of mobile wallet systemD．may be a threat to profits of current mobile service providers 点击查看答案

结构动力特性参数与外荷载无关。( ) 点击查看答案&解析