【单选题】Such agents as clavulanic acid, sulbactam, or tazobactam are often added to some proprietary (manufactured) penicillin combination products. Which of the followings is the main reason for including th...
A.
Add antibiotic activity against Pseudomonas and many Enterobacter species
B.
Facilitate antibiotic penetration into the central nervous system and cerebrospinal fluid
C.
Inhibit cell wall transpeptidases
D.
Inhibit inactivation of penicillin by b-lactamase-producing bacteria
E.
Inhibit the normally significant hepatic metabolism of the penicillin
【单选题】Assume you have a gram negative bacterium that produces acid from lactose and cannot use citric acid as its sole carbon source. What is the bacterium?