The main pattern of organization of the second paragraph is ___.

comparison and/or contrast (比較與/或對比)：本題正解。判斷依據是第二段同時提到兩個（以上）對象，並使用如 however, unlike, in contrast, on the other hand（對比）或 similarly, likewise, in the same way（比較）等訊號詞來呈現其異同。當全段核心在於「兩者哪裡相同、哪裡不同」時，即為此架構。