单项选择题

A．$5.00
B．$5.60
C．$4.40
D．$6.60
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单项选择题
A．Guarantee full protection of the environment.B．Centralize the management of water resources.C．Increase the sense of responsibility of agencies at all levels.D．Encourage local and regional control of water resources.
A．Guarantee full protection of the environment.
B．Centralize the management of water resources.
C．Increase the sense of responsibility of agencies at all levels.
D．Encourage local and regional control of water resources.
单项选择题
The Greenland Inuits’’ rheumatoid arthritis levels are the lowest in the world.
A．Y
B．N
C．NG
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