题目

Pete Richards was the loneliest man in town on the day that little Jean Grace opened the door of his shop.        Pete's grandfather had owned the shop until his death. Then the shop became Pete's. The front window was full of beautiful old things: jewelry of a hundred years ago, gold and silver boxes, carved figures from China and Japan and other nations.        On this winter afternoon, a child stood there, her face close to the window. With large and serious eyes, she studied each piece in the window. Then, looking pleased, she stepped back from the window and went into 下列动物中，学习能力最强的是（ ）A．蚯蚓B．大山雀C．马D．黑猩猩