对 X 线的描述，下列正确的是
更新时间:2024-11-15 21:26:23 A、X线的硬度大→频率高→穿透力强A
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Thenewdiscovery_______beofgreatservicetomankind.
重写句子：Attheinternationalmuseum,youcanfindancientEgyptianart.YoucanexploreAfricanartifactsthere.Youcandiscoverbeautifultextilesfromaroundtheworldthere.(parallelstructure)
在发生人感染H7N9禽流感确诊病例的县(区)内，应当在病例确诊后开展为期()的强化监测
Manypatientsinsistonhavingwatcheswiththeminhospital,______theyhavenoschedulestokeep.
AfaultlinerunsthelengthofNewZealand,whichmeansthatitoftenhas________.
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