A star that suddenly becomes several magnitudes brighter and then gradually fades is a（）.

A、double star

B、variable star

C、nova

D、nebula

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更多“A star that suddenly becomes several magnitudes brighter and then gradually fades is a（）.”相关的问题

第1题

[单选题] A double star is a star that（）.

A、has a declination equal to twice that of the Sun B、comprises two stars that appear close together C、is twice as bright as a single star D、suddenly becomes much brighter and then fades

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第2题

[单选题] The SMS should provide for specific measures aimed at promoting the reliability of equipment or systems （） may result in hazardous situations.

A、which the sudden operational failure B、that the sudden operational failure C、the sudden operational failure D、the sudden operational failure of which

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第3题

[单选题] Which of the following standard symbols signifies that a packaged item was produced using hazardous materials industry guidelines？（）

A、Energy Star B、Energy Star 2.0 C、PCI-E D、RoHS

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第4题

[单选题] A first magnitude star is（）.

A、2.5 times as bright as a second magnitude star B、3 times as bright as a second magnitude star C、5 times as bright as a second magnitude star D、10 times as bright as a second magnitude star

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第5题

[多选题] 关于Star Diagnosis诊断仪，下列哪项是不正确的？（）

A、任何程序可以安装在Compact4的Star Diagnosis诊断仪系统中 B、SD connect可以在任何Star Diagnosis诊断仪上操作 C、Compact4的Star Diagnosis诊断仪有一个可充电电池 D、Compact4不是目前Star Diagnosis诊断仪的升级版 E、Basic 2不是目前Star Diagnosis诊断仪的升级版

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第6题

[多选题] Star Diagnosis诊断仪可以通过哪些方式升级？（）

A、通过升级光盘为Star Diagnosis诊断仪升级 B、通过USB存储并传输为Star Diagnosis诊断仪升级补丁（Addon） C、通过网络下载为Star Diagnosis诊断仪升级补丁（Addon） D、通过蓝牙传输为Star Diagnosis诊断仪升级补丁（Addon） E、以上升级方式均不正确