红降现象(red drop)
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红色神经元(red nerve cell)
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2、White infarct and red infarct
White infarct and red infarct
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红色石灰土(red limestone soils)
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红色肝样变(red hepatization)
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5、A red triangular daymark marks ().
A red triangular daymark marks ().Athe centerline of a navigable channelBthe starboard side of a channelCa prominent object of navigational interest that has no lateral significanceDan area of a channel where passing another vessel is permitted
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6、赤潮和水华 ①本为自然现象: 赤潮(red tide)是海洋中某些微
赤潮和水华 ①本为自然现象: 赤潮(red tide)是海洋中某些微小(2-20微米)的浮游藻类、原生动物或更小的细菌,在满足一定的条件下爆发性繁殖或突然性聚集,引起水体变色的...