单选题
In the fourth paragraph, the author is primarily concerned with
A、
(A) restating the main idea of the passage
B、
(B) using research findings to make predictions
C、
(C) outlining the direction of future research
D、
(D) describing an additional aspect of a phenomenon
E、
(E) introducing a conflicting hypothesis
【正确答案】
D
【答案解析】
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