【单选题】【消耗次数：1】
断电会使存储数据丢失的存储器是____
①
RAM
②
软盘
③
ROM
④
硬盘
参考答案：
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相关题目
【简答题】
按照存储器的读写功能分类，存储器可分为RAM和ROM，RAM称为[填空1]，ROM称为[填空2]
【单选题】
关于随机存储器RAM，不具备的特点是（）
①
RAM中的信息可读可写
②
RAM是一种半导体存储器
③
RAM中的信息不能长期保存
④
RAM用来存放计算机本身的监控程序
随机题目
【判断题】
A、B、C是任意集合，如果A∈B及B<imgdata-url="doc/a@BE62978D1556D978DD8ADCBE797A3385.jpg"data-preview_url_ueditor="doc/a@BE62978D1556D978DD8ADCBE797A3385.jpg"src="http://121.251.253.213/doc/a@BE62978D1556D978DD8ADCBE797A3385.jpg/download?time=636160156065406061&token=88BA0B3DF5103397D077146AA5FE1ABD&filename=jpg"/>C，则A∈C。
①
正确
②
错误
【判断题】
A、B、C是任意命题公式，如果A∧C<imgdata-url="doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg"data-preview_url_ueditor="doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg"src="http://121.251.253.213/doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg/download?time=636160149056001750&token=2EAE2B04A9758637A941E72BB85B6BE5&filename=jpg"/>B∧C，一定有A<imgdata-url="doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg"data-preview_url_ueditor="doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg"src="http://121.251.253.213/doc/a@E84B3E63D310AD1116BA25407581A3DC.jpg/download?time=636160149137745894&token=DEFF417B0353B6D1F51C4963ABFDB837&filename=jpg"/>B。
①
正确
②
错误
【单选题】
<imgsrc="http://121.251.253.213/doc/a@25A8EE3D03B94A9F04D52345269684B2.png/download?time=636002469279516676&token=667DD112AFAE69C50B1A261A40FC4718&filename=png"data-url="doc/a@25A8EE3D03B94A9F04D52345269684B2.png"data-preview_url_ueditor="doc/a@25A8EE3D03B94A9F04D52345269684B2.png"/>
①
<imgsrc="http://121.251.253.213/doc/a@4EA15DA9D72B7EB9DB10D08648C08C67.png/download?time=636002469357204812&token=A3BD2200A91DEDBFD005F65BAF740481&filename=png"data-url="doc/a@4EA15DA9D72B7EB9DB10D08648C08C67.png"data-preview_url_ueditor="doc/a@4EA15DA9D72B7EB9DB10D08648C08C67.png"/>
②
<imgsrc="http://121.251.253.213/doc/a@652DB2CAA7F879DCDAFB1BB68E421DEB.png/download?time=636002469435984951&token=C0A6D39C3768EDD45CC4A7D5AE83EEBC&filename=png"data-url="doc/a@652DB2CAA7F879DCDAFB1BB68E421DEB.png"data-preview_url_ueditor="doc/a@652DB2CAA7F879DCDAFB1BB68E421DEB.png"/>
③
<imgsrc="http://121.251.253.213/doc/a@77F7CEF7772DDF237C280A444E2E16BD.png/download?time=636002469573889193&token=1ED3A1FE631AE91F328056D1EA6BB6FF&filename=png"data-url="doc/a@77F7CEF7772DDF237C280A444E2E16BD.png"data-preview_url_ueditor="doc/a@77F7CEF7772DDF237C280A444E2E16BD.png"/>
④
<imgsrc="http://121.251.253.213/doc/a@B54146B380619C725F9C9D89C3C6E2B5.png/download?time=636002469780901556&token=B067D315DA70A8FB600D7D11CE925E5B&filename=png"data-url="doc/a@B54146B380619C725F9C9D89C3C6E2B5.png"data-preview_url_ueditor="doc/a@B54146B380619C725F9C9D89C3C6E2B5.png"/>
【单选题】
<imgsrc="http://121.251.253.213/doc/a@C698C4ADC93D93531381824327A9FF44.png/download?time=636002474470581793&token=0B9B3D8B57AE0E63ECE153E923BCE509&filename=png"data-url="doc/a@C698C4ADC93D93531381824327A9FF44.png"data-preview_url_ueditor="doc/a@C698C4ADC93D93531381824327A9FF44.png"/>
①
<imgsrc="http://121.251.253.213/doc/a@CF33E559A85423D5CAB6EDCFECDC1DC7.png/download?time=636002474556069944&token=1F73253CE0DBDE683628F12C5F4D8450&filename=png"data-url="doc/a@CF33E559A85423D5CAB6EDCFECDC1DC7.png"data-preview_url_ueditor="doc/a@CF33E559A85423D5CAB6EDCFECDC1DC7.png"/>
②
<imgsrc="http://121.251.253.213/doc/a@60A71C811B81029FBF602DFB3E611403.png/download?time=636002474654194116&token=D3D19601DFC12A813BAA15BE2BFEF530&filename=png"data-url="doc/a@60A71C811B81029FBF602DFB3E611403.png"data-preview_url_ueditor="doc/a@60A71C811B81029FBF602DFB3E611403.png"/>
③
<imgsrc="http://121.251.253.213/doc/a@1CC11FD18C5106A0703556B59DF43E87.png/download?time=636002474737810263&token=CC4793C07577F75B877ADA52A41C1E24&filename=png"data-url="doc/a@1CC11FD18C5106A0703556B59DF43E87.png"data-preview_url_ueditor="doc/a@1CC11FD18C5106A0703556B59DF43E87.png"/>
④
<imgsrc="http://121.251.253.213/doc/a@147CD7754712A48704A0454D88895623.png/download?time=636002474844982451&token=3081AFA389E2249745935FD3A4A33759&filename=png"data-url="doc/a@147CD7754712A48704A0454D88895623.png"data-preview_url_ueditor="doc/a@147CD7754712A48704A0454D88895623.png"/>