第19题: [单项选择]妊娠37＋周，近3天自觉腹胀。检查：腹形较妊娠月份大，骨盆外测量正常，胎头浮，跨耻征（+）。B型超声检查示胎儿双顶径11.3cm，应诊断为
A. 巨大胎儿 B. 双胎妊娠 C. 羊水过多 D. 胎儿宫内发育迟缓 E. 胎头高直位 参考答案:A 答案解析:胎儿体重达到或超过4000g，称为巨大胎儿。约占出生总数的5％，多见于经产妇、过期妊娠、糖尿病、父母身材高大者。腹部检查宫底高度与腹部明显大于妊娠周数，触诊胎体、胎头较大，需与环球网校双胎及羊水过多鉴
第23题: [单项选择]What does Nera do for the preparation for becoming a secretary or a nurse A. She is working in a nursery. B. She is moving into her own apartment. C. She is studying in a high school. D. She is asking help from the father. 参考答案:C 答案解析:[试题分析] 细节推理题。
[详细解答] 短文的最后两段举了Nera这样一个十五岁怀孕生子的未婚妈妈。最后一段谈到了她为了当秘书或护士在一所中学学习：Nera tries to keep her a
