第12题: [单项选择]对于枕先露的分娩机制的含义,下列哪项是不恰当的() A. 内旋转是胎头最低的枕部在盆底受肛提肌收缩力而被推向母体前方即小囟门被推转至耻骨弓下方 B. 胎头进入骨盆入口时以枕下前囟径衔接 C. 俯屈、内旋转、仰伸、外旋转等动作都贯穿于下降过程中 D. 俯屈是胎头下降至骨盆轴弯曲处即盆底时受肛提肌的阻力而发生的 E. 仰伸是在枕骨下部(粗隆)到达耻骨联合下缘时发生的 参考答案:B
第15题: [单项选择]And the topic "fat" is forbidden. Even the slightest paunch betrays that one is losing the trim and ______ of youth. A. vague B. vigor C. vogue D. vulgar 参考答案:B 答案解析:[解析] 本题的空格处应为“青年人的整洁和活力”。vigor意为“精力,活力”,符合题意。其他三项“vague含糊的,不清楚的;vogue时髦,流行;vulgar庸俗的,普通的”都不正确。
第18题: [单项选择]Parents who have an adopted child want to know() A. how to hide the fact that he or she is adopted B. when the child was born exactly C. whether they should tell the child that he or she is adopted D. if the child has certain disease 参考答案:C 答案解析: