下列哪种细菌属于嗜盐菌()。
A.副溶血性弧菌
B.沙门菌
C.利斯特菌
D.大肠杆菌
E.肉毒梭菌
参考答案:A
解析:B、C、D、E四种菌均不耐盐,因此答案为A。
When he was opening the door, he was ___________ that he was being followed by a policeman.
A.conscious
B.casual
C.careful
D.doubtful
甾类药物按结构特点可分为
A.雌甾烷类、雄甾烷类、孕甾烷类
B.雌甾烷类、谷甾烷类、雄甾烷类
C.谷甾烷类、雄甾烷类、孕甾烷类
D.胆甾烷类、雌甾烷类、孕甾烷类
E.谷甾烷类、胆甾烷类、雄甾烷类