【单选题】桁架结构在节点荷载作用下,桁架各杆只产生()。
【判断题】库存现金日记账与银行存款日记账,不论采用三栏式或多栏式,都是根据收款凭证和付款凭证登记的。
【简答题】位错属于线缺陷,冷作硬化可以增加材料的强度,本质上是 了位错的数量。
【单选题】被周恩来称为“一个无保留追随党的布尔什维克”的人民教育家是( )
【判断题】在荷载作用下,桁架各杆只产生轴力。( )
【判断题】被周恩来称为“一个无保留追随党的布尔什维克”的人民教育家是陶行知
【单选题】Mary asked me, 'Where are we going for the vacation?' Which sentence is right? [ ]
A.
Mary asked me where are we going for the vacation.
B.
Mary asked me where we are going for the vacation.
C.
Mary asked me if we were going for the vacation.
D.
Mary asked me where we were going for the vacation.