第23题: [单项选择]男,21岁,半小时前不慎自10m高处坠下,右胸部首先撞至砖墙上,即感气短、呼吸困难,外伤、无昏迷、头痛及呕吐,无腹痛及小便失禁。查体:P110次/分,BP12.0/9.1kPa(90/68mmHg),胸科专科见气管左移明显,右侧胸部饱满,肋间饱满增宽,未见局部软化浮动现象,右侧触觉语颤及呼吸动度消失,呼吸音消失,左胸未见明显异常。本病例初步诊断为() A. 闭合性气胸 B. 开放性气胸 C. 张力性气胸 D. 少量血胸 E. 多根多处肋骨骨折 参考答案:C
The epiphyte plants of the rain forest use trees for physical support but do not, like______ , sap nutrients from their hosts. A. fauna B. predators C. parasites D. insectivores E. (E) stumps 参考答案:C 答案解析:By definition, parasites sap or drain nutrients from their hosts.