皮皮学，免费搜题
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【多选题】
健全依法维权和化解纠纷机制,建立健全(),畅通群众利益协调、权益保障的法律渠道。A.
社会矛盾预警机制
B.
利益表达机制
C.
协商沟通机制
D.
救济救助机制
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】在四显示自动闭塞信号灯中绿黄灯是( ),表示运行前方有2个闭塞分区空闲。
【单选题】听力原文：M: I was wondering if it would be OK for me to miss the next class. I must go to visit a friend of mine who is in hospital at the moment. W: Of course, Vincent. I’m very sorry to hear about your ...
A.
Doctor and patient.
B.
Student and teacher.
C.
Sales assistant and customer.
D.
Manager and officer clerk.
【单选题】听力原文：M: I was wondering if it would be ok for me to miss the next class? I must go to visit a friend of mine who is in hospital at the moment. W: Of course, Vincent. I'm very sorry to hear about your ...
A.
Doctor and Patient.
B.
Student and teacher.
C.
Sales assistant and customer.
D.
Manager and office clerk.
【简答题】铝及铝合金焊接前要仔细清理焊件表面，其主要目的是为了防止产生()。
【单选题】I ’ m wondering if I should go to the manager and ask for a few days off.
A.
我想找经理请假，但他不一定批准
B.
我在想是否应该去向经理请几天假
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