单项选择题

What' s the result of the French study

A．The harm of mobile phone radiation is life-threatening.
B．Mobile phone may affect one' s normal way of thinking.
C．Sleep disorders could result from mobile phone radiation.
D．A protein called hsp27 is killed by mobile phone radiation.
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The word arbiters ( Line 6, Para. 4) most probably refer to those ______.
A．who work as coordinators
B．who function as judges
C．who supervise transactions
D．who determine the price
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What is many captive shippers' attitude towards the consolidation in the rail industry
A．Indifferent.
B．Supportive.
C．Indignant.
D．Apprehensive.
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