The original experiment cannot be exactly duplicated.

单选

His stomach felt hollow with fear.

A A:empty B B:sincere C C:respectful D D:terrible

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单选

His professional career spanned 16 years.

A A:started B B:lasted C C:changed D D:moved

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She felt that she had done her good deed for the day.

A A:homework B B:act C C:justice D D:model

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单选

The group does not advocate the use of violence.

A A:support B B:limit C C:regulate D D:oppose

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单选

Some of the larger birds can remain stationary in the air for several minutes.

A A:silent B B:seated C C:true D D:motionless

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单选

There was an inclination to treat geography as a less important subject.

A A:tendency B B:point C C:result D D:finding

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That uniform makes the guards look absurd．

A A:ridiculous B B:serious C C:beautiful D D:impressive

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New secretaries came and went with monotonous regularity.

A A:dull B B:amazing C C:depressing D D:predictable

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The country was torn apart by strife.

A A:poverty B B:conflict C C:war D D:economy

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单选

This was disaster on a cosmic scale.

A A:modest B B:huge C C:commercial D D:national

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