清扫保洁工的责任是服从管理，认真工作，熟悉并自觉遵守公司各项制度。
参考答案：对
John applied for the post of Eliot's secretary. Does he __________ the necessary patience and ability
to do the job well?[ ]
A. perform
B. possess
C. observe
D. support
液化气贮罐有几种可能会造成液化气大量泄漏？
