【简答题】请标出图中各设备的名称:1-( );2-( );3-( );4-( );5-( );6-( );7-( );8-( );9-( )
【判断题】五声调式的音阶中总是空缺四级音和七级音。
【单选题】导体或线圈在磁场中运动时,导体或线圈内就会产生一个()
【单选题】The Master or person in charge of a ship is required to log ______.
A.
the names of all persons on board
B.
only the names of the crew members on board
C.
only the names of passengers on board
D.
information on emergency training drills
【单选题】以下哪项不是维生素D缺乏性手足搐搦症的临床特点