【单选题】焊接钢筋骨架时应采用的焊接方法是( )。
【单选题】He used to live here, but now he lives here.
【单选题】—Jimmy isn't here. Where is he? —He hurt his arm on the playground just now. He ______ to the school doctor's. [ ]
【单选题】查询中需要统计元组的个数时,使用( )函数。
【判断题】如果不限制多项式的次数,插值多项式不唯一 .
【单选题】He moved here ten years ago. Now he _____ here. [ ]
【判断题】针对两性生殖的害虫,采用雌性灭绝策略来调控其种群密度是最佳的方 案。( )
【单选题】—Where is your teacher, Kangkang? —He was here just now, but … maybe he _______his office. [ ]
【单选题】. He ____ in the north, but now he ____ here.
A.
used to live; is used to the life
B.
use to live; is used to live
C.
used to living; is used to living
D.
used to live; is used to live