【单选题】
19. Water will continue to be ____ it is today —next in importance to oxygen.
【单选题】
Nowhere in nature is aluminum found free, owing to its always _____with other elements, most commonly with oxygen.
【单选题】
19. Your room is ____ mine.
【单选题】
19.Never____ realised that water is so precious
【单选题】
19. _______hand in his exercise book before Monday.
【单选题】
19. The American people _____ a president every four years.
【多选题】
19.个人活期存款结息规定包括:
④
D.未到结息日清户时,按清户日挂牌公告的活期利率计息。