面目一身俱黄,黄而晦暗如烟熏者,属()。
A.黄胖
B.阴黄
C.苍黄
D.萎黄
E.阳黄
参考答案:B
I don't think it's good to copy other's homework. You should it.
[ ]
A. get up
B. get on
C. get over
D. get off
在现代动物生产中饲料成本是影响生产效益的主要因素,平均占生产总成本的()。
A、40~50%,
B、60~70%,
C、50~80%,
D、40~80%.