初步鉴定B群链球菌的试验是()
A.马尿酸钠水解试验
B.CAMP试验
C.Optochin敏感试验
D.杆菌肽敏感试验
E.胆汁七叶苷水解试验
参考答案:B
燃烧是一种放热发光的化学反应。()
--- Perhaps John’s not in. --- _______. Look, the light is on.
A.Yes, he can be at home.
B.No, he couldn’t go out
C.Yes, he must be at home
D.No, he needn’t go out