24. The spiral is one of the oldest geometric shapes found in the ancient world. The petroglyphs of
the symbols ____ back to the Neolithic period.
(A) are dating
(B) have been dated
(C) were dated
(D) date
(E) which dated
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統計: A(10), B(20), C(22), D(27), E(5) #2911492
統計: A(10), B(20), C(22), D(27), E(5) #2911492