据统计,一条年上市一万头肉猪的生产线,每天冲洗猪舍排出的污水为()吨。
A.0—30
B.30—60
C.60—80
D.80~120
参考答案:D
_____________ the ability to speak, so he used sign language to communicate with others.
A.As he lost
B.He lost
C.Having lost
D.His being lost
硬食管镜检查的并发症包括()。
A.食管黏膜损伤出血
B.食管穿孔
C.诱发支气管哮喘
D.迷走神经反射性心跳骤停
E.环杓关节损伤