单项选择题

What can be inferred from the last paragraph

A．The establishment of extensive fishery zones is harmful to ecosystem management.
B．Reassessment of solutions to pollution problems will bring sustainable fishery resources to individual nations.
C．International community's unwillingness to shoulder responsibility contributes to the control over pollution.
D．international standards need to be set to affect ocean ecosystems.
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单项选择题
Why were there few jurisdictional disputes over international waters until the mid-twentieth century
A．No nation had the right to regulate coastal activities for innocent purposes.
B．All nations shared equal right and responsibility for international waters.
C．Few standards of conduct could be applied to activities in international waters.
D．Most nations did not establish rules for management or protection of their territorial waters.
单项选择题
This artical is probably ________.
A．a legal inquiry into the existing laws and practice and the possibilities of reform
B．a political study on international affairs and useful solutions
C．a historical analysis of a problem that requires international attention
D．a proposal for the implementation of international standards to solve ecological problems
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