单选题：Those scientists are surprised to find that moderu forest an

题目内容：

Those scientists are surprised to find that moderu forest and savanna elephants don' t have the same progenitor(祖先). A．True
B．False
C．Not Given

参考答案：

答案解析：

The project starts with measuring brain volumes of a thousan

The project starts with measuring brain volumes of a thousand people in the same

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下列风险控制方法中，适用于第一类危险源物控制的是( )。A．提高各类施工设施的可能性 A．提高各类施工设施的可能性 B．隔离危险物质 B．

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