中国地理疆域特征明显：疆域外延为大海和高山、戈壁、沙漠等诸地理因素，北面是寒冷的西伯利亚，西北是难以逾越的戈壁沙漠，西南是险峻神秘的青藏高原，东部是最为浩瀚无际的太平洋。这种地理环境对中华文明的直接影响是

下列瓶中盛装的常见物质中，含有机物的是（    ）

    Betty is an American girl. She is thirteen. She is in Beijing with her parents. She doesn't know much Chinese. She can't speak Chinese well. Sometimes her friends don't understand her.

    It's Sunday morning. She is going to the zoo to see pandas. She is waiting at a bus stop. At the bus stop she asks a boy which bus to take to go to the zoo. But the boy can't understand her. Then she takes out a pen and a piece of paper. She draws a panda on it and shows the picture to the boy. The boy smiles and then shows her the way to the zoo.

下列图片中反映隋唐时期成就的是（    ）