【单选题】American people were proud and optimistic because they felt they had saved the world and now were helping to rebuild Europe and Japan.
【多选题】9SiCr合金下列表达正确的有:()
A.
前面的9表示合金的含碳量的千分数,此合金的Wc=0.9%
D.
前面的9表示合金的含碳量的V万分数,此合金的Wc=0.09%
【单选题】己知英文大写字母A的ASCII码为十进制数65,则英文大写字母E的ASCII码为十进制数( )。
【判断题】信念是人脑对直接作用于感觉器官的客观事物的各种属性的整体反映。
【简答题】若一个直角三角形的两边长分别为12和5,则此三角形的第三边长为______.
【多选题】电子商务的内容管理即管理网上需要发布的各种信息,其内容主要包括三个方面( )
【单选题】There were many people standing by, but _____ of them were willing to help the poor boy.