专利有()种类型 ["发明","创造","实用新型","外观设计"]
如果一组幻灯片中的几张暂时不想让观众看见,最好使用什么方法() ["A.删除这些幻灯片","B.隐藏这些幻灯片","C.新建一组不含这些幻灯片的演示文稿","D.自定义放映方式时,取消这些幻灯片"]
QR515MHA变速器匹配的发动机是() ["473","480","477","475"]
放热焊接设备铜溶液渗漏应使用适当()的铜套管、密封剂、铜片或铜带、耐高温棉带。 ["长短","大小","厚度","型号"]
物权设立和变动包括() ["物权设立","物权变更","物权转让","物权消灭"]
简述现代地理学中统一地理学(一元地理观和多元方法论)思想。