单选题：The quakes recorded during the first week of April in the a

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题目内容：

The quakes recorded during the first week of April in the area of Mount Saint Helens warned scientists of a new eruption. A．Right
B．Wrong
C．Not mentioned

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Pilots flying at the height of more than 2100 meters saw a t

Pilots flying at the height of more than 2100 meters saw a thick black column o

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ILM is the company responsible for many of the changes in s

ILM is the company responsible for many of the changes in special-effects techn

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请回答(47)__________

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The accepted criteria of adequate diet have been challenged

The accepted criteria of adequate diet have been challenged by new discoveries

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Many observers believe that country will remain in state of

Many observers believe that country will remain in state of chaos if it fails t

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