低温环境对初生仔畜的影响大于成年畜禽。()
参考答案:对
A team of American scientists has found a treatment to protect humans from the deadly H5N1 flu virus, ________ brings great ________ to the world.
A.that; appearance
B.which; relief
C.which; advantage
D.that; profit
人误食被新鲜粪便污染的蔬菜后可能感染()
A.蛔虫
B.鞭虫
C.钩虫
D.蛲虫
E.以上都不可能