革兰染色阳性的细菌是()
A.难辨梭状芽孢杆菌
B.铜绿假单胞菌
C.军团菌
D.肺炎链球菌
E.结核分枝杆菌
参考答案:D
简述班主任工作的主要内容
The incidence of this disease has been greatly reduced thanks to our health care program.
A.seriousness
B.frequency of occurrence
C.mortality
D.cure rate