由于绳芯损坏而引起的绳径减小时,钢丝绳应报废。()
船政文化的核心是爱国、开放()创新。 ["A、革新","B、改革","C、发展","D、拼搏"]
肛门内外可见瘘管开口,常有脓性分泌物流出,经久不愈为()肛门内日(齿状线以上)有紫红色包块,表面为黏膜者称()排便时疼痛,伴少量出血为() ["肛裂","外痔","内痔","肛周感染","肛瘘"]
一般来说,电气低压设备较高压设备容易产生触电。()
支气管扩张可见()佝偻病可见()脊髓灰质炎后遗症可见() ["匙状甲","杵状指(趾)","肢端肥大症","膝内、外翻","足内、外翻"]
正常人的脊柱立位时从侧面观可见()由于儿童发育期坐、立姿势经常不端正可致()