皮皮学，免费搜题
登录
搜题
【单选题】
某鸡场300只34日龄鸡发病，发病率90%，病死率80%。病鸡伸颈张口呼吸，咳嗽，气喘，有鼻漏；部分鸡翅、腿麻痹，下痢，粪带血。剖检见嗉囊积液，全身性黏膜和浆膜出血，盲肠扁桃体肿胀、出血。对该鸡群应采取的措施是（）A.
疫苗紧急接种
B.
环境清洁消毒
C.
病鸡隔离饲养
D.
污染物无害化处理
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Jack London was at his height of his powers when he wrote ___, which is deeply influenced by Darwinism.
A.
The Sea Wolf
B.
Martin Eden
C.
The Call of the Wild
D.
White Fang
【单选题】Jack London was at his height of his powers when he wrote______, which is deeply influenced by Darwinism.
A.
The Sea Wolf
B.
To Build a Fire
C.
The Call of the Wild
D.
Martin Eton
【单选题】______ entering his flat, Jack was shocked to find his new computer missing.
A.
In
B.
On
C.
By
D.
At
【单选题】下列属于文件输入输出类的是()
A.
FileInputStream 和 FileoutputStream
B.
BufferedInputStream 和 BufferOutputStream
C.
PipeInputStream 和 PipeOutputStream
D.
以上都是
【简答题】以下程序的输出结果是【 】。 include＜iostream＞ using namespace std； int main(){ int sum，i； for(sum=0，i=1；i＜5；i++)sum+=i； cout＜＜sum＜＜endl； return 0； }
【单选题】以下程序的输出结果是#include ＜iostream＞using namespace stdint main(){ cout.fill('*') cout.width(5)； cous＜＜hex＜＜100＜＜end1 return 0}
A.
**100
B.
***64
C.
100**
D.
64***
相关题目：
参考解析：
知识点：
题目纠错 0
发布
