我国畜禽饲养标准中能量体系猪选用(),禽用(),牛用()。
参考答案:DE、ME、NE
to gain access to seats at college the seniors are working hard.
A.That is;\
B.It is;that
C.What is;that
D.Which is;why
维生素K对下列何种出血无效?()
A.胆道梗阻所致出血
B.胆瘘所放出血
C.新生儿出血
D.肝素所致出血
E.华法林所致出血