题目

阅读理解 Rico is a dog who lives in Germany. His owners trained him from a young age to find his toys. When they say the name of a certain toy, Rico can find it. In fact, he seems to know the names of 200 toys! Some researchers in Germany wanted to test Rico. They put his toys in a room and then told him to go into the room and find a certain toy. Since nobody was in the room with Rico, he had no help from anyone finding the right toy. The researchers did this test forty times. Rico found the right toy thirty-seven times. Then the researchers tried something else. They put seven of R图中ATP（甲）是生命活动的直接能源物质，下列叙述正确的是（ ）A.在主动运输过程中，乙的含量会显著增加B.甲→乙和乙→丙过程，起催化作用的酶空间结构相同C.丙是DNA的基本组成单位之一D.丁由腺漂呤和核糖组成，而戊可用于甲的合成