【简答题】网络广告诸策略中最为关键的策略是___ _____。
【单选题】检查安许茨型陀螺罗经的陀螺球高度时,罗经应满足的条件是 。
【单选题】The reason Dad was in a hurry to get home was that he______.
A.
wasn't feeling very well
B.
hated to drive in the dark
C.
wanted to take some exercise
D.
didn't want to be caught by the police
【单选题】构建人类命运共同体思想的核心是( )
B.
建设持久和平、普遍安全、共同繁荣、开放包容、清洁美丽的世界
【简答题】说明下列各图电阻器的标注方法及阻值: (1) :标注方法 ;阻值 Ω; (2) :标注方法 ;阻值 Ω;