单项选择题

Which of the following is NOT the reason for the decrease of salmon according to Mr. Williams

A．High water temperatures.
B．Shocking twist.
C．Illegal fishing.
D．Officials' failings.
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单项选择题
How many salmon were there every spring in British Columbia's rivers four years earlier
A．1.3 million.
B．About 524,000.
C．About 1,824,000.
D．Above 2,000,000.
单项选择题
The explosive conflict in the first paragraph refers to
A．salmon's return to British Columbia's rivers to spawn.
B．the fisheries committee of Canada's House of Commons and Bryan Williams.
C．the struggle between sockeye salmon and human beings.
D．the collision between salmon's survival and human fishery.
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