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【多选题】
字符流有两个抽象的顶级父类，分别是（）和（）？A.
Reader
B.
InputStream
C.
OutputStream
D.
Writer
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反馈参考答案：
举一反三
【单选题】透视中的天点是指( )。
A.
向上倾斜与画面不平行的线段消灭于视平线上方的点
B.
向下倾斜与画面不平行的线段消灭于视平线下方的点
C.
由视点引与成 45 °角的视线，其与视平线的交点
D.
视心线和画面的焦点
【多选题】房屋及设备设施管理的主要内容包括: ( )
A.
使用管理、维修保养、外包管理
B.
采购和零备件管理、工量具和维修用设备的管理
C.
排水管、排水沟、化粪池清掏
D.
安全管理、技术档案资料管理、技术支持
【多选题】物业房屋及设施设备安全管理的主要内容包括（）。
A.
强化安全教育，了解安全防护知识和安全管理规定
B.
建立健全各类安全管理制度并严格遵守
C.
严格遵守安全操作规程，防患于未然
D.
物业保值的评估
E.
提供必要的安全和防护装置装备
【简答题】阅读理解。 When I was at university, I studied very hard. But a lot of my friends did very little work. Some did just enough to pass the exams. Others didn't do quite enough. Fred Baines was such a student...
【简答题】F o r most of us , wor k is the central, dominating fact of life. We spend more than half our conscious hours a t work , pre parin g for work, traveling to and from work. What we do there l argely det...
【多选题】物业房屋及设施设备安全管理的主要内容包括( )。
A.
强化安全教育，了解安全防护知识和安全管理规定
B.
建立健全各类安全管理制度并严格遵守
C.
对设施设备进行的定期检查、维护
D.
物业保值的评估
E.
提供必要的安全和防护装置装备
【简答题】Attached is the newly updated MedCram I downloaded from youtube. A patient in Solano County, California has been diagnosed with COVID-19, and represents a possible ""community exposure" to the SARS-Co...
【简答题】阅读理解。 When I was at university I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn't do quite enough. Fred Baines was one of them. He spe...
【简答题】阅读理解。 When I was at university, I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn't do quite enough. Fred Baines was one of them. He sp...
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