【单选题】6个月男婴,2天来弛张高热、咳嗽,精萎纳差,时有呕吐,周围血WBC 26×109/L,查体:烦躁不安,气促,面色苍白,皮肤可见猩红热样皮疹,两肺可闻中小湿哕音,最可能诊断为
【单选题】Do not install the equipment in a location which is exposed to direct rays of the san.
B.
在太阳光能够直接到达的地方,不能安装该设备。
【单选题】11个月男婴,弛张高热,咳嗽6天,精神萎靡,纳差,时有呕吐,周围血WBC 26×109/L。查体:烦躁不安,气促,面色苍白,皮肤可见猩红热样皮疹,两肺可闻中小湿啰音。 该患儿最可能的诊断是
【单选题】The power factor is a measure of the phase difference between voltage and current and is expressed as the_____ of the phase angle.
【简答题】患儿,3岁6个月。麻疹已6天,现高热不退,咳嗽声嘶,声如犬吠,咽喉肿痛,烦躁不安,舌红苔黄腻,脉数。其诊断是( )
【单选题】Do not install the equipment in a location which is exposed to direct rays of the sun.
B.
在太阳光能够直接到达的地方,不能安装该设备。
【单选题】The power factor at which a paralleled AC generator operates is usually adjusted by the _____.
D.
generators rated voltage