北京奥运会场建设取得了多项创新成果。这表明A建筑文化有其自身的继承性 B社会实践是文化创新的源泉C建筑艺术是文化创造的主体 D先进科技是文化创新的动力
It seems oil____from this pipe for some time, we’ll have to take the machine apart to put it right.
—Ms Lin looks rather a kind lady. —But in fact she is cold and hard on us. You ____ believe it!
Not until I reminded him for the third time _____ working and looked up.
—______ that he managed to get the information? —Oh, through a friend of his.
_______ ,he was ready to help the poor.