第16题: [单项选择]有关骨囊肿的说法中,正确的是() A. 是一种局限性骨的瘤样病损,并非真正的囊肿 B. 好发于青少年、中年人 C. 病理显示为稠密的纤维组织 D. 影像学表现为骨骼膨胀变粗,骨密质变薄,呈磨砂玻璃样 E. 治疗以刮除植骨为主,较少复发 参考答案:A 答案解析:骨囊肿是一种好发于儿童和青少年长骨干骺端的囊性病变,并非真正的囊肿。病理显示为稠密的纤维组织是骨纤维异常增殖症的表现。影像学表现为近干骺端中央的圆形或椭圆形膨胀性透亮区。治疗以刮除植骨为主,各种治疗方
第17题: [单项选择]什么是腹式呼吸() A. 吸气时让腹部凸起,吐气时压缩腹部使之凹入的呼吸法 B. 吸气时让腹部凹入,吐气时压缩腹部使之凸起的呼吸法 C. 靠竹骨的侧向扩张来吸气,用肋间外肌上举肋骨以扩大胸廓 D. 吸气时双肩上抬 参考答案:A
第23题:[单选题]Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour. A.velocities B.impulses C.ratios D.atrocities 参考答案:A 本句话的意思:“神经信号在神经及肌肉纤维里以每小时200公里的速度传递。”speed意为“速度”。velocity意为“速度,快速”,如:The car was moving at such a velocity!那辆汽车的速度简直太快了!impulse意为“冲动”,如:He bought the house on an impulse.他一时冲动买下了这所房子。ratio意为“比率”,如:The ratio of schoolboys to schoolgirls is 2 to 1.男学生和女学生的比例是2:1。atrocities意为“暴行”,如:People were annoyed by his atrocity.他的暴行激怒了人们。只有选项A与speed含义相近。
第27题: [单项选择]The owner of the auto plant refused to raise the workers' wages, saying that it would ______the profit. A. cut off B. cut short C. cut into D. cut up 参考答案:C 答案解析:[解析] cut off切断;cut short中断;cut into侵犯(利益);cut up切碎。根据句意, C最合适。