【判断题】根据牵引力量来源、牵伸方式和持续时间,可把牵伸分为手法牵引、机械装置被动牵引和自我牵引。
【单选题】Listen, TED ______________
A.
started in 1994 as a conferece.
B.
became a non-profit after it was acquired.
D.
initially had a different name.
【简答题】A.They need to listen to their kids with great interest and attention. B.They should tell whether it's their kids mistake. C.They should exchange all their life stories with the kids. D.They should gi...