孔子的文学思想以“（）”为核心，强调文学要为（），认为文学是（）
参考答案：诗教；政治教化服务；以仁义礼乐教化百姓的最好手段
--- I hear that Hu Jintao will come to Nantong because the Sutong Bridge is open to traffic soon.
--- Do you know _______?
A．what will he talk about
B．where will he give a talk
C．how will he come
D．when he will arrive
超声诊断前置胎盘至少要到（）。
A.10孕周后
B.20孕周后
C.25孕周后
D.28孕周后
E.35孕周后
