鸡白痢沙门氏菌主要侵害雏鸡,成年鸡感染此病呈慢过()
参考答案:对
根据中文提示,完成句子.
1.I like math ,but my best friend ______(厌恶)it.
2. My mother is sleeping. Please be (安静).
3. I often go to school by bike, but (有时) I walk to school.
4. Lucy enjoys (购物)every day.
5.Tom's father works on the ____ _(第五) floor in the tall building.
6. The pay phone is (在……后面) the supermarket.
摄像机、云台和解码器的安装应符合的规定有()
A.设备箱内设备排列应整齐、走线应有标识和线路图
B.摄像机及尽头安装前应通电检测,工作应正常
C.确定摄像机的安装位置时应考虑设备自身安全,其视场不应不遮挡
D.架空线入云台时,滴水弯的弯度不应小于电缆的最小弯曲半径
E.安装室外摄像机、解码器应采取防雨、防腐、防雷措施