A. the manager was assigned a challenging task B. the manager assign a challenging task C. the board assigned him a challenging task D. a challenging task was assigned to the manager
A. 红色 B. 黄色 C. 蓝色 D. 白色
A. 严格执行操作规程 B. 如实地出具检验报告 C. 严格保守企业合法的商业秘密 D. 遵守职业道德行为准则