桥梁橡胶支座水平位移量的大小主要取决于()的净厚度。
参考答案:橡胶片
— Mary divorced again last week.
— Why did she do a thing like that? It seems to make no _____. [ ]
A. difference
B. comment
C. sense
D. meaning
物流按其业务活动的性质分类可分为多种,而()是不属于该分类项下的。
A、中观物流
B、供应物流
C、生产物流
D、销售物流