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【判断题】
为减少工件热变形对加工精度的影响,常采用切削液冷却切削区的方法。A.
正确
B.
错误
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举一反三
【简答题】When he ____1____ the plane in Washington, D.C., following the 1992 Winter s, and everyone in the terminal started ____2____, Paul Wylie almost stopped in his tracks. Who’s behind me? He wondered....
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【多选题】我国《旅游法》规定了县级以上人民政府旅游主管部门监督检查的事项范围。包 括:()
A.
经营旅行社业务是否取得经营许可
B.
景区未提前公布门票涨价信息
C.
旅行社的经营行为
D.
导游和领队等旅游从业人员的服务行为
E.
法律、法规规定的其他事项
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