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【简答题】
简述生态系统的三大功能群。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】《墨葡萄图》是明代画家（）的作品，《溪山行旅图》是宋朝画家（）的作品。
【单选题】The only thing ______ really matters m the parents is how soon their children can return home.
A.
what
B.
that
C.
which
D.
this
【单选题】The main purpose of this passage is to______.
A.
explain how the performance of a job can be measured in points
B.
describe the responsibilities of various departments
C.
tell readers how a firm can succeed in adopting a new pay system
D.
tell readers how difficult the management work is
【单选题】How can parents monitor children's behavior?
A.
Parents shouldn't allow children to surf the net.
B.
Parents shouldn' t allow children to use smartphones.
C.
Parents should encourage children to learn the digital things.
D.
Parents should monitor how often children use the Internet.
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