常见的细菌变异现象不包括()
A.抗原性变异
B.毒力变异
C.耐药性变异
D.菌落变异
E.荚膜变异
参考答案:D
---“Which would you like to drink, coffee or orange juice?”
---“ . Please give me a cup of tea.”
A.Neither
B.Both
C.All
D.None
与小肠相表里的是()
A.心
B.肝
C.脾
D.肺
E.肾