It is reported that up to now, mountain slides have cut off more than ten villages from the outside world,

_____ more than 100 hundred people alive and _____ many houses. [ ]

A. buried; destroyed

B. burying; destroying

C. to bury; to destroy

D. being buried; being destroyed

某猪场断奶仔猪和保育猪出现发病，主要表现为体温40～42.5℃，食欲下降，厌食，反应迟钝，呼吸困难，咳嗽，腹式呼吸，关节肿胀，跛行甚至瘫痪，背毛粗乱，苍白贫血，眼睑周围皮下水肿，眼结膜变红，耳部皮下、腹部皮下水肿，耳尖发紫，耳朵、四肢内侧发绀，背部毛孔有针尖样出血，两后腿之间腹部皮肤有大量蓝紫色斑点。发病后常呈慢性经过，通常发病2～5d后出现死亡，个别猪突然死亡，临死前侧卧或四肢呈划水样。剖检可见多发性纤维素性或浆液性脑膜炎、胸膜炎、心肌炎、腹膜炎、关节炎、间质性肺炎、心包炎，形成绒毛心典型症状（病程较长时），腹腔内有大量黄色积液采集病料进行（）

A.实验室检查

B.病毒分离鉴定

C.细菌分离鉴定

D.免疫学诊断

E.变态反应诊断