According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.
【简答题】单词拼写(共10小题;每小题1分,满分10分) 51. I must a__________ to you for not being able to meet you at the airport. 52. There has been an 8% d__________ in his income because of the financial cr. 53. Though time...