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AutoCAD中交叉点标记在鼠标点击处生成了怎么办?

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依据《中国南方电网有限责任公司电力安全工作规程》,非专业工种人员不应装拆脚手架,现场装拆等作业应安排专人进行监督;作业场地临近的输电线路等设施()采取防护措施;在地面应设有围栏和警示标识,非操作人员不得入内。

A. 应
B. 看情况
C. 闹区要
D. 有人时

You are working on an Oracle Database 10g database that operates in the ARCHIVELOG mode. At 06:00 p.m., you discovered that a table in the SYSTEM tablespace that does not belong to the data dictionary was dropped at 03:00 p.m. What would you do to recover the table?()

A. use the Flashback Transaction Query feature to identify the relevant SQL statement and use it to undrop the table
B. restore the entire database from the most recent backup and open it
C. recover the table by using the Flashback Table feature
D. perform point-in-time recovery to recover the table

某宾馆经营客房、舞厅、代办长途电话、洗衣服务、餐厅等业务,本月取得以下业务收入:①客房收入12万元;②餐厅收入8万元;③舞厅门票收入3,000元,饮料收入5,000元,点歌收入2,000元,④代办长途电话收费6,000元,支付给电信局长途电话费4,000元;⑤洗衣收入2,000元。娱乐业的营业税额()

A. 0.04万
B. 0.06万
C. 0.1万
D. 0.2万

男,45岁,既往有肺结核及哮喘反复发作史。半小时前上楼时,突发呼吸困难及右侧胸痛。查体:明显呼吸困难,发绀,端坐呼吸,大汗,烦躁,颈静脉充盈,气管轻度左偏,桶状胸;双肺叩诊过清音,右侧略带鼓音;右肺呼吸音低,左肺可闻哮鸣音。下列治疗措施中,哪项为首选()

A. 胸腔穿刺抽气
B. 静脉滴注地塞米松
C. 沙丁胺醇(舒喘灵)解痉
D. 静脉滴注抗生素
E. 胸腔穿刺抽液

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