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【单选题】（上海理工大学2006年试题） In a telephone survey of more than 2,000 adults, 21% said they believed the sun revolved(旋转)around the earth. An【1】7% did not know which revolved around【2】. I have no doubt that;【3】all...
A.
what
B.
which
C.
that
D.
other