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【单选题】
淀粉卵甲藻病的主要特点描述不正确的是()A.
无寄主特异性，多种淡水鱼、海水鱼均可感染
B.
流行水温20～30℃，最适温度为稍过25℃，10℃以下不形成游泳子
C.
寄生在的时期叫营养体，呈球形、卵形或梨形，大小20～150μm；胞质中有许多淀粉粒
D.
严重感染的皮肤和鳍上有许多小白点
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【简答题】The National Gallery Description: The National Gallery is the British national art museum built on the north side of Trafalgar Square in London. It houses a diverse collection of more than 2,300 examp...
【单选题】Stylistically, Henry James‘ fiction is characterized by _______ .
A.
short, clear sentences
B.
abundance of local images
C.
ordinary American speech
D.
highly refined language
【单选题】Which of the following best expresses the essential information in the highlighted sentence? Incorrect answer choices change the meaning in important ways or leave out essential information.
A.
Most luxuries and comforts were important and could improve the quality of people's lives.
B.
Most luxuries and comforts were not so important because they couldn't improve the quality of people's lives.
C.
Most luxuries and comforts were not necessary and also they prevented the progress of human beings.
D.
Most luxuries and comforts were so costly that people could not afford them.
【单选题】Why is Yellowstone National Park important?( )
A.
Because it is the first national park in the world.
B.
Because it is in America.
C.
Because it is the biggest national park in America.
D.
Because it is the first national park in America.
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