单项选择题

A．He feels uncomfortable.
B．He is in a hospital now.
C．He has had an operation.
D．He has ear trouble.
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单项选择题
A．He is curious.B．He is impatient.C．He is exhausted.D．He is satisfied.
A．He is curious.
B．He is impatient.
C．He is exhausted.
D．He is satisfied.
问答题
1.能源在人类的生存和发展中的重要作用；2.描述目前的能源现状，并指出引起全球能源危机的原因；3.如何解决能源危机。How to Solve The Energy Crisis
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