环甲膜可以作为紧急气管切开的手术部位。
参考答案:错
According to the expert, most animals will stay here, but ninety percent of the cattle ________ the nearby preservation area in the coming week.
A.is to go to
B.is heading for
C.are being imported to
D.are to be transferred to
多头犊牛突发羞明,流泪,眼睑痉挛,局部增温,1至2日内角膜中央出现微黄色浑浊,继而出现圆形溃疡,周边有新生血管形成。
该病的病原为()
A、大肠杆菌
B、葡萄球菌
C、巴士杆菌
D、绿脓杆菌
E、莫拉杆菌