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Some ecologists believe ______ more than 50 percent of existing species will be
Some ecologists believe ______ more than 50 percent of existing species will be
游客
2025-02-09
27
管理
问题
Some ecologists believe ______ more than 50 percent of existing species will be lost in the next 100 years.
选项
A、because
B、that
C、while there is
D、that there are
答案
B
解析
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