光合细菌
参考答案：
利用光能和二氧化碳维持自养生活的有色细菌。是在厌氧条件下进行不放氧光合作用的细菌的总称。
He wasn't _____ and made many mistakes in his homework. [ ]
A. careful enough
B. enough careful
C. carefully enough
D. enough carefully
