问题
选择题
The long-held belief _____ certain foods increase intelligence has turned out to be a disappointment. [ ]
A. that
B. whether
C. which
D. why
答案
答案：A
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The long-held belief _____ certain foods increase intelligence has turned out to be a disappointment. [ ]
A. that
B. whether
C. which
D. why
答案：A