【单选题】跨度为L的简支梁在集中荷载F作用下,其最大剪力为( )
【判断题】大庆精神主要包括:为国争光、为民族争气的爱国主义精神;独立自主、自力更生的艰苦创业精神;讲求科学、“三老四严”的科学求实精神;胸怀全局、为国分忧的奉献精神。即“爱国、创业、求实、奉献”。( )
【单选题】______ is announced in the papers, our country has launched a large-scale movement against smuggling and fraudulent activities in foreign currency exchange deals.