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对失业造成的影响,下列判断正确的有( )
患者,48岁,因下前牙松动1年就诊。检查:下前牙均有Ⅰ~Ⅱ度松动,结石较多,深牙周袋,X线片示下前牙牙槽骨吸收严重。牙周病进展期的病理变化不包括()
自阀手柄在紧急制动位时,总风经由分配阀主阀供气阀口、常用限压阀、紧急限压阀向()充气。
心肺复苏时可选用()和()等缩血管药。
某慢性肺源性心脏病患者近两日来因感冒后呼吸困难加重,血气分析示Pa0252mmHg,PaC0276mmHg,此时给氧宜采用()。
天馈线驻波比在工作频段内不应大于()
我国非政府组织发展中面临的问题包括()
组织文化创建的具体原则包括()
急性肾衰竭恢复期的标准以下哪项是错误的()
下行功率分配方式有( )
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If a few injector spray holes become plugged, the result could be ()