生长猪需要()种必需氨基酸,即赖氨酸、蛋氨酸、色氨酸、缬氨酸、亮氨酸、苯丙氨酸、苏氨

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问题:

生长猪需要()种必需氨基酸,即赖氨酸、蛋氨酸、色氨酸、缬氨酸、亮氨酸、苯丙氨酸、苏氨酸、异亮氨酸、精氨酸、组氨酸。雏鸡需要13种必需氨基酸。

考点:畜牧、兽医科学饲料与饲养学饲料与饲养学题库
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Stone Field Country Park is in the south of Guangzhou. The Visitor’s Center is open from 9:30 to 16:30 every day. At the center you can get maps whit information about the location(位置) of public toilets, car parks, first-aid stations(急救站), barbecue(BBQ) places, shopping centers and public telephones in the park.
Main Attractions
We are proud of the Plant Garden. You can see thousands of different kinds of plants here. For sports lovers, a visit to our Sports Center is something you must do. Have fun with rope(绳子) walks, rock climbing and many other fun games.
A Note to Visitor
Please remember that fire is only allowed in the barbecue places. So enjoy your BBQ meals there!
Come and enjoy a day full of fun at Stone Field Country Park!
Location
小题1:___________ of Guangzhou
Opening hours(Visitor’s Center)
小题2: ____________ every day
Facilities(设施)
小题3: ____________, car parks, first-aid stations, BBQ places   shopping centers 小题4:_____________.
Main Attractions
小题5:Plant Garden, ______________
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法律部门与法典

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病例对照研究中需要对照是因为()。

A.通过对比,可估计暴露的效应

B.追踪观察他们以确定其是否发生所调研的疾病

C.增大了样本,易于达到统计学显著性

D.可以对病例中某特征或既往暴露是不是不同于产生该病例的群体中那些具有可比性的无病者的特点或既往暴露进行评估

E.就可疑的病因因素与病例进行配比

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关于杂剧与南戏,下列说法不正确的是()。

A、篇幅长短不一样,杂剧较长,南戏较短。

B、歌唱形式不同,北杂剧一般由男主角、女主角度唱到底,南戏各种角色都可以唱。

C、伴奏乐器来看,南戏以鼓板为主,北曲以弦索为主。

D、题材看,南曲偏于爱情戏、家庭纠纷戏;北曲适合表现英雄故事。

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会计核算的基本前提包括会计主体、______、会计分期和______四项

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