题目内容
（请给出正确答案）
The example of "the baiji" is cited to show that ______.
A．the habitats of dolphins are restricted to rivers and deltas
B．Yangtze River is no longer a suitable habitat for dolphins
C．the extinction of animals is due to the activities of people
D．dolphins living in rivers are most vulnerable to extinction
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更多“The example of "the baiji" is …”相关的问题
第1题
By saying "the mother-lode population in Bangladesh" in paragraph 5. the author refers lo ______.
A．the "ocean giants" studied by a non-profit group
B．the thriving population of Irrawaddy dolphins
C．many millions of people living in Bangladesh
D．both Bangladeshi and Ganges River dolphins
请帮忙给出正确答案和分析，谢谢！
第2题
The long term threat Irrawaddy dolphins are faced with is______,
A．the rising salinity of the water they live in
B．the higher sea levels due to global warming
C．the inevitable erosion of Himalayan glaciers
D．the final disappearance of the species" habitats
请帮忙给出正确答案和分析，谢谢！
第3题
Biologists called on urgent protection of dolphins on account of ______.
A．the widespread distribution of fishing nets
B．the excessive dam construction along rivers
C．the rising human threat due to inconsideration
D．the deteriorated and ruined coastal ecosystems
请帮忙给出正确答案和分析，谢谢！
第4题
Marine biologists used to assume that Irrawaddy dolphins ______.
A．were a species with thriving population
B．were faced with the state of being extinct
C．were restricted to brackish bays and rivers
D．thrive from southern Asia to northern Australia
请帮忙给出正确答案和分析，谢谢！
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