Which statement is true about a Dynamic Chain Selection Module instance?()
A. It is the first module in the partner module chain in Web Services Security Management (WSSM).
B. It is the last module in the partner module chain in WSS
C. It is the first module in the application module chain for partner.
D. It is the last module in the application module chain for the partner.
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劳动者被诊断患有职业病,但用人单位没有依法参加工伤社会保险的,其医疗和生活保障由最后的用人单位承担。
A. 正确
B. 错误
施工升降机防坠安全器与()连锁,吊笼失去控制并沿导轨架快速下滑或上升时,防坠安全器将吊笼制停的同时,切断驱动电动机的电源。
A. 安全停层装置
B. 行程开关
C. 微动开关
D. 上下极限开关