【单选题】手表的日历机构按其更换日期所需()来区分,可分为满爬式、快爬式和瞬跳式三种。
【单选题】- What took you so long? - I got lost. I have no _______of direction.
【简答题】标注圆弧半径时,半径数字前,应加符号( );标注圆的直径时,直径数字前,应加符号( )。
【单选题】.With so many things ______ my mind, it took a long time before I I fell asleep.
C.
to fill D being filled
【单选题】— What took you so long? — I got lost. I have no ________ of direction.
【单选题】I ________ asleep because it took me a long time to realize that the telephone was ringing.