材料一：“非礼勿视，非礼勿听，非礼勿言，非礼勿动。”“人而不仁，如礼何？人而不仁，如乐何？”“君子和而不同，小人同而不和

——《论语》

材料二：下图为北京孔庙大成殿，上有清康熙帝所题“万世师表”。

材料三：韩国文化中有着传统儒家文化的因子，但这些传统因子已和韩国人的现代生活，以及他们从西方吸收来的现代思想观念揉和在一起，因而不仅这些传统因子被激活了，而且被赋予了新的生命。“汉流”要走向世界，也必须走融合东西方文化、融合现当代生活的路。

——孙逊《“韩流”与“汉流”的内涵解读》

回答：

B

    It's 14:00. The house is quiet(安静的). "Tom?" Mom says. No one answers.

    Mom comes to Tom's house. He is not in the bed. But his model plane is on the desk. "He is not in his room, and he is not in the yard(院子)," Mom thinks. Then Mom comes to his grandparents' room. Tom likes to play with Grandpa's tape player. But he is not there.

    Mom looks for(寻找) him everywhere. But where is Tom? Mom is worried. She wants to call Dad. She comes to the living room to get the phone.

    "What's that?" Mom sees something(某物) black under the sofa. Oh, it's Paul, Tom's dog. It loves sleeping(睡觉) there. But what is next to Paul? It's Tom!

人体胚胎发育的场所是（　　）​