管理是否有效,关键在于是否有灵敏、正确、有力的()
A.监督系统
B.激励系统
C.反馈系统
D.绩效考评系统
参考答案:C
Comrade Lei Feng often thought more of ____ than himself. [ ]
A. other
B. the other
C. others
D. another
细菌培养时间为(),温度为。