管道设备中常用的阻火器有()。
A.砾石阻火器
B.金属网阻火器
C.波形散热式阻火器
D.铸石阻火器
参考答案:A, B, C
If they win the final tonight, the team are going to tour around the city _____ by their enthusiastic supporters. [ ]
A. being cheered
B. be cheered
C. were cheered
D. to be cheered
男性,20岁。平素健康,淋雨后突发寒战、高热、头痛,第2天出现右侧胸痛、咳嗽、咳痰,胸片示右上肺大片实变影。
该患者最有可能的致病菌为()
A.流感嗜血杆菌
B.卡塔莫拉菌
C.肺炎链球菌
D.肺炎支原体
E.肺炎军团菌