原址拆除房屋,新建房的,应先办理什么业务?
免疫球蛋白有几种类型:() ["2种","5种","4种","3种"]
当混凝土碳化深度超过保护层厚度时,钢筋开始()。 ["受力","提高强度","生锈","变细"]
防止输血传播HIV的首要方法是:() ["选择输血传染病低危的献血者","选择好检测试剂","选择好的检测方法","选用合适的检测设备"]
下列关于等深线用途的说法中,()是错误的。 ["等深线可用于避险","等深线可用于导航","等深线可用来缩小概率船位区","等深线可用来测定仪器误差"]
规划许可证的申请人与公章不符时,应由哪些部门出具相关文件?