【判断题】在混凝土结构设计时,应以混凝土的抗压强度作为设计依据。
【简答题】任务要求 一、根据所学知识,将以下运行界面完成的功能程序补充完整。 设计一个窗体,其上有一个标签、一个文本框、一个命令按钮,每个控件上显示的值为下图显示。 要求: 1 、如果输入大于 0 的数,则弹出“输入的数:是正数”,如果输入等于 0 的数,则弹出“输入的数:是零”,如果输入小于 0 的数,则弹出“输入的数:是正数”。 输入数值,然后单击“判断”就会弹出如下图对话框。 程序如下: Privat...
【简答题】找错并改错。 ( ) 1. She hasn't heard a letter from her friend for a long time . A B C D ( ) 2. I don't know why Kate hasn't replied my letter for half...
【单选题】I couldn't be mistaken I ______ heard the loudspeaker calling passengers for the flight to New York.
【单选题】— I heard that the famous player ________ his coach would come to our school for a visit. — I heard the news ________. [ ]
C.
as well as; as well as
【单选题】在进出口业务中关于检验检疫的时间和地点对买卖双方最公平的是()。
【单选题】—Have you heard from Jim? —No, I haven't. The underlined part means'_______'. [ ]
B.
received a letter from
【单选题】设 , 在 的某去心邻域内可导, ,且适合 及 ,则 : 与 : 的关系是( )