单选题According to a report in the online version of the journal Science, ______.A coral reefs in the Caribbean have declined by 80 percent in the last ten years.B coral cover in the region has fallen by 40 percent.C coral reefs in the Caribbean have decline
题目
单选题
According to a report in the online version of the journal Science, ______.
A
coral reefs in the Caribbean have declined by 80 percent in the last ten years.
B
coral cover in the region has fallen by 40 percent.
C
coral reefs in the Caribbean have declined to 30 percent.
D
the decline rate of coral cover equals rates of tropical forest loss.