9. The passage mentions which of the following as a threat to marine areas outside the United States?
(A) Limitations in financial support
(B) The use of marine species as food
(C) Variability of the climate
(D) Increases in tourism
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統計: A(0), B(2), C(1), D(9), E(0) #803458
統計: A(0), B(2), C(1), D(9), E(0) #803458