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单词
placoderm
释义
placoderms是placoderm的复数
placoderm
美
英
网络
盾皮鱼；盾皮鱼类
复数：
placoderms
英英
网络释义
n.
1.
an
extinct
animal
resembling
a
fish
that
was
covered
with
bony
plates
and
lived
in
the
Paleozoic
era
.
1.
盾皮鱼
这处古礁体富含已灭绝的
盾皮鱼
（
placoderms
）化石。盾皮鱼是当时海洋中处于食物链顶端的捕食者。
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2.
盾皮鱼类
(A)介皮鱼类(ostracoderms) (B)
盾皮鱼类
(
placoderms
) (C)软骨鱼类(chondrichthyes) (D)硬骨鱼类(osteichthyes) （B）89.依据最 …
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例句
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filled rectangle
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filled soap
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filled spandrel arch bridge
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filled styrene butadiene rubber
filled sweets making machine
filled system thermometer
filled-system thermometer
filled system thermometre
filled tank
filled text
filled the bill
filled thermal system
filled thermometer
filled thermoplastic
filled thermoplastics
filled thermoset
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更新时间：2025/8/19 2:34:35