There are a total of about 20 active aircraft carriers in the world, and the US has half of them, and it's building more.
世界上共有约20艘现役航空母舰,美国占一半,而且它还要建造更多。
单词 | Active carrier |
释义 |
Active carrier
原声例句
经济 Crash Course There are a total of about 20 active aircraft carriers in the world, and the US has half of them, and it's building more. 世界上共有约20艘现役航空母舰,美国占一半,而且它还要建造更多。
中文百科
带原者 Asymptomatic carrier(重定向自Active carrier)
![]() 带原者指受到传染病的感染或带有隐性(recessive)遗传疾病的不正常基因,却不表现症状的人。即使不受到疾病或基因可感染到的影响,他们仍能够将传染性疾病的病原体散播给其他个体。 而基因则可透过性行为传给子代。但对遗传学而言,部分可造成疾病的隐性基因对带原者来说,仍会产生微观或不易察觉的生理变化、这种现象称为带原(俗称带菌)。对医学、流行病学和公共卫生以及优生保健的发展是一种潜在的阻碍。
英语百科
Asymptomatic carrier 带原者(重定向自Active carrier)
![]() An asymptomatic carrier (healthy carrier or just carrier) is a person or other organism that has contracted an infectious disease, but who displays no symptoms. Although unaffected by the disease themselves, carriers can transmit it to others. |
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