皮皮学，免费搜题
登录
搜题
【单选题】
下列对生态系统的叙述正确的是A.
最大的生态系统是海洋生态系统
B.
为了保护把狼全部猎杀，这对草原生态系统没有影响
C.
人类的生产活动过度不会破坏生态系统的自动调节能力
D.
生态系统中的物质和能量就是沿着食物链的食物网流动的
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】日语专业是否是你的第一志愿?
【简答题】A．She got up later than usual. B．She took the wrong train. C．She forgot that she should work. D．The train was late.
【简答题】Galaxy saw a man and a woman who communicated with the sign language at the train station when she was on the way home one evening. She noticed that the woman asked the mon for the direction. He told ...
【简答题】Galaxy saw a man and a woman who communicated with the sign language at the train station when she was on the way home one evening. She noticed that the woman asked the man for the direction. He told ...
【单选题】听力原文：M: Is it better to take tile train to Beijing or go by plane? W: The train is a lot cheaper, but it takes at least twice as long. Q: What does the woman mean? (3)
A.
She could not afford to fly to Beijing.
B.
It is more convenient to take a plane.
C.
Taking a plane costs more but saves time.
D.
It is better to go to Beijing by train.
【简答题】A.She gets angry with delays of the train. B.She is willing to wait for the next train. C.She doesnt understand what the man says. D.She is happy to talk with the man.
【简答题】()认为一切都可以还原为物理学。 A物理学主义 B唯科学主义 C大物理学主义 D经济学
相关题目：