单项选择题 The provision of benefits to employees will not affect a company's ability to attract and retain quality workers. A、正确 B、错误

单项选择题 Which description is wrong about the general structural characteristics of the exocrine glands?

单项选择题 从工业1.0到工业4.0的发展特征分别是_______ A、机械化 B、电气化 C、自动化 D、智能化 E、以上都对