[多选题]氯霉素临床应用于( )
A.伤寒和副伤寒
B.严重沙门菌属感染合并败血症
C.脑脓肿
D.脑膜炎奈瑟菌脑膜炎
E.立克次体感染

An air of anxious uncertainty spread throughout the small Indian camp as the sun dawned that morning. Some braves gathered beside a smoking campfire. Murmuring sounds could be heard as they talked quietly. Women nervously performed their domestic tasks, preparing a small meal. Several sad, old men sat mute, their morale very low.
The camp was pitched at the edge of a deep valley—so deep that one could barely see the calm water at the bottom. The Indians had been taken by surprise and were surrounded and attacked by enemy forces. They fought bravely, but they were degraded by defeat. Their homes were destroyed. Those who had survived had been pursued by the enemy. The chase had lasted for days. Persuaded by their leaders to press on, they had made a wrong turn. Their hazardous journey ended at the edge of a valley—a desperate situation. Before them was a great hole in the earth. Behind them was the enemy. No wonder they were frozen with fear. Where could they g
A. felt much relieved at the report
B. were excited by the report
C. disregarded the report entirely
D. believed the report completely