“美人鱼”的名字叫儒艮,之所以被人们称为“美人鱼”,是因为母兽给幼崽喂奶时常常浮出水面,就像人类的哺乳一样,它属于哪种动物类群

“美人鱼”的名字叫儒艮,之所以被人们称为“美人鱼”,是因为母兽给幼崽喂奶时常常浮出水面,就像人类的哺乳一样,它属于哪种动物类群

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Which of the following is right? ( )

Which of the following is right? ( )

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At last, Kate finished the work in time. ( )

At last, Kate finished the work in time. ( )

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下列是烟台特产的蔬菜和水果,通常不利用无性生殖栽培的是

下列是烟台特产的蔬菜和水果,通常不利用无性生殖栽培的是

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