【单选题】若某地某日昼长 14 个小时.它的日落时间应是 ( )
【多选题】我们在创作音乐时需要遵循哪些基本准则:()
【简答题】磁感线越密的地方磁场越 ,磁感线越疏的地方磁场越 。
【单选题】The company has just launched an advertising campaign to ____ their newly produced bicycles.
【单选题】What has Bernd Fischer's Bearings Company done to maintain their market position?
A.
Kept product availability.
B.
Encouraged technological innovation.
C.
Improved customer support.