【单选题】—I have just had my watch repaired.—How much did they______you for that?
【简答题】Nonverbal behavio r such as smile and laugh seem to cut across cultural lines. But in reality, they are often found to be not ________________.
【简答题】Why did the popularization of Welsh costume boost the Welsh woollen industry?
【简答题】How did Welsh keep their own language?
【单选题】How________did you________cleaning your classroom that afternoon? [ ]
【简答题】How did the Welsh speakers fight hard to preserve Welsh?
【单选题】变压器原、副绕组中不能改变的物理量是( )。