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【单选题】
曲线①．②．③代表的热量输送分别是A.
大气输送、总热量输送、海洋输送
B.
海洋输送、总热量输送、大气输送
C.
大气输送、海洋输送、总热量输送
D.
海洋输送、大气输送、总热量输送
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知识点：
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举一反三
【单选题】The network administrators can use the______to detect and solve the network problems probably occurred in the local computer.
A.
event viewer
B.
system monitor
C.
network monito
D.
task manager
【单选题】Eight thousand years ago, forests covered more than 23 million square miles, or about 40 percent of Earth's land surface. Today, almost half of those forests have fallen to the ax, the chain saw, the ...
A.
The present situation of frontier forest on Earth.
B.
The history of ecology.
C.
The forest map in the past.
D.
Beautiful forests in different parts of the world.
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