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当传播时不受任何阻碍、无反射存在，则称为（ ）。
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当传播时不受任何阻碍、无反射存在，则称为（ ）。
A、自由声场
B、半自由声场
C、扩散声场
D、均匀声场
时间：2021-09-01 20:18
关键词：
青书学堂
河南工业大学
机械工程基础及设备(专升本)
答案解析
A
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boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
当传播时只受地面的反射而其他方面不受任何阻碍,则称为( )。
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
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A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
当传播时不受任何阻碍、无反射存在，则称为（ ）。
当系统显示出错信息：Bad command or file name时，应从（）方面进行检查。
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
病例对照研究进行统计性推断时不匹配分层资料总的OR值计算公式是
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Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.
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If he is a common carrier，he is absolutely responsible to the owner of the goods carried （）any loss or damage to them unless caused by an Act of God or the Queen’s enemies，or the inherent vice in the goods themselves，or the negligence of the owner of the goods，or a general average sacrifice.
系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
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