综合定价法的定价要根据（）的需要，合理确定。 ["成本","市场的需求","市场的竞争","规模的大小","行政的宏观调控"]
关于混凝土浇注及养护，下列（）说法不正确。 ["应连续浇筑，分层浇筑每层厚度不宜超过30～40cm。相邻两层浇筑时间不得超过2.5h（掺缓凝性外加剂的间歇时间由配合比实验确定）","混凝土底板和顶板不得留施工缝。当设计有变形缝时，宜按变形缝分仓浇筑","宜用电热法和蒸汽养护","冬期施工注意防止结冰，特别是预留孔洞处及容易受冻部位应加强保温措施"]
轮式行驶系一般由（）、（）、（）和悬架组成。
You are creating a Windows Forms application by using the .NET Framework 3.5. You have implemented the PrintPage event to send the page output to the printer.The users must select the printer and the page range before printing. You need to ensure that users can print the content of the form by clicking the button control. Which code segment should you use？（） ["A","B","C","D"]
从1980年到21世纪中叶，我国社会主义现代化建设的战略目标和战略的步骤是（） ["温饱水平","小康水平","中等发达水平","赶英超美"]
自杀意念
