复合农林技术
压型钢板与其他相关联的工序流程中，堵头板和封边板安装紧后工作是（）。 ["压型钢板安装焊接","清扫、施工批交验","栓钉焊","压型板锁口"]
Which will declare a method that is available to all members of the same package and can be referenced without an instance of the class？（） [" Abstract public void methoda（）；"," Public abstract double methoda（）；"," Static void methoda（double d1）{}"," Public native double methoda（） {}"," Protected void methoda（double d1） {}"]
为维护国家的科技地位，德国政府出资建立了一批现代化的科研基础设施，为哪两类机构（） ["A.福利机构 ","B.科学机构 ","C.独立科研机构 ","D.联邦政府各专业部的部属科研机构"]
在证明中是如何体现诉讼证明的真理性和正当性原理的？
扫描式传感器
