The gurnard species has a wide vocal repertoire and keeps up a constant chatter. Codfish, 14 , usually keep silent, except when they are laying eggs.
答案：(D) on the other hand
on the other hand 意為「另一方面」，用來與前一句形成對比：魴鮄類喋喋不休，鱈魚則多半安靜；by all means（務必）、for example（例如）、as a result（因此）都無法承接這個對比。
答對率 37%。
四個選項都是轉承語，關鍵在於分辨它們各自標示什麼關係：on the other hand ＝ 對比（另一方面）；for example ＝ 舉例；as a result ＝ 因果；by all means ＝ 務必、當然可以。「先確認前後兩句的關係，再挑對應的轉承語，這是所有轉承語題的通則。」
The gurnard species has a wide vocal repertoire and keeps up a constant chatter.（魴鮄類的發聲種類繁多，喋喋不休）；本句 Codfish, ___, usually keep silent（鱈魚則多半保持安靜）。一個吵、一個安靜，是明顯的對比，所以用 on the other hand。這一格必須讀前一句才判斷得出來。
for example 需要後句是前句的例子，但鱈魚不是魴鮄的例子，兩者是不同的魚；as a result 需要因果關係，魴鮄很吵不會「導致」鱈魚安靜。
on the one hand… on the other hand…（一方面…另一方面…）、in contrast（相較之下）、whereas（而、然而）、by all means（務必、當然可以）。
The undersea world isn't as quiet as we thought, according to a New Zealand researcher. Fish can "talk" to each other and make a range of 11 by vibrating their swim bladder, an internal gas-filled organ used as a resonating chamber to produce or receive sound.
Fish are believed to speak to each other for a number of reasons, such as to attract mates, scare off predators, or give directions to other fish. Damselfish, for example, have been found to make sounds to scare off 12 fish and even divers. Another discovery about fish sounds is that not all fish are 13 "talkative." Some species talk a lot, while others don't. The gurnard species has a wide vocal repertoire and keeps up a constant chatter. Codfish, 14 , usually keep silent, except when they are laying eggs.
Any goldfish lover who hopes to strike up a conversation with their pet goldfish is 15 . Goldfish have excellent hearing, but they don't make any sound whatsoever. Their excellent hearing isn't associated with vocalization.