【简答题】设计一个算法,输入矩形的长与宽,输出矩形的面积,并画出程序框图
【单选题】无界空间中传播的均匀平面波,其电场和磁场在垂直于传播方向的横向平面内,这样的波称为( )波。
【单选题】某框架柱截面为400mmX400mm,混凝土强度等级为C30,对称配筋纵向受力钢筋用HRB335级钢筋。若纵向受压钢筋为构造配筋,下列为一侧的配筋,最为合适的是()
【单选题】In the writer's view, the assertion that money would be useless on a desert island
A.
illustrates one limitation to the importance of money
B.
is only of importance to people stranded in such places
C.
proves that there are many situations in which money is irrelevant
D.
tells us nothing of significance about money in a certain situation
【判断题】油脂的可塑性是指可以塑造成其它一些形状,而不能恢复原来形状的性质。