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11．At times the balance in nature is .resulting in a number of possibly unforeseen effects. A．confused B．puzzled C．disturbed D．troubled 【查看更多】

 

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At times the balance in nature is ______，resulting in a number of possibly unforeseen effects.

A．troubledB．confusedC．disturbedD．puzzled

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At times the balance in nature is ______，resulting in a number of possibly unforeseen effects.

A．troubled  B．confused    C．disturbed  D．puzzled

 

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At times the balance in nature is________，resulting in a number of possibly unforeseen effects.

A．confused 　　　　　 B．puzzled

C．disturbed 　　　　　 D．troubled

 

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At times the balance in nature is ______，resulting in a number of possibly unforeseen effects.

A．troubled B．confused　 C．disturbed D．puzzled

 

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At times the balance in nature is ________， resulting in a number of possibly unforeseen effects.
[     ]
A．troubled  
B．confused
C．disturbed  
D．puzzled

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