鸡没有真正的淋巴结,但终生可以通过法氏囊器官抵抗微生物入侵。()
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盲肠微生物发酵可消化粗纤维,鸡的盲肠比较发达,因此日粮中可添加较高的粗纤维原料。( )
A. 对
B. 错
鸡总共有7对肋骨,其中第1和第2肋骨的末端游离,未与胸骨相连接。()
A. 对
B. 错
Calligraphy’s purpose is to retain the beauty of nature and illuminate man’s_____beauty. Chinese calligraphy stresses the overall layout and harmony between words and lines.
A. spiritual
B. outside
Chinese traditional painting refers to______painting.
A. oil
B. ink-wash