A．One.B．Two.C．Three.D．Four.

How many generators does the shuttle carry？A．One.B．Two.C．Three.D．Four.

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How many persons are in the conversation？A．One.B．Two.C．Three.D．Sour.

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How many examples are there "as evidence of tribalism"？A．Four.B．Two.C．One.D．Three.

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A．Two nights.B．Two days.C．Four nights.D．Four days.

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How often does a person dream each night？A．Two to four times.B．Four to six times.C．Every 6

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A．One.B．Two.C．Three.D．Four.

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Please choose the right description about language of four.A.The Language of Four is to

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