第20题: [单项选择]某妇女身体矮小、匀称,骨盆测量数值如下:髂棘间径21cm,髂嵴间径23cm,骶耻外径16cm,出口横径7cm,对角径11cm。孕妇骨盆为 A. 扁平骨盆 B. 畸形骨盆 C. 漏斗骨盆 D. 横径狭小骨盆 E. 均小骨盆 参考答案:E 答案解析:正常妇女髂棘间径23~26cm,髂嵴间径25~28cm,骶耻外径18~20cm,出口横径9cm,对角径12.5~13crn。该妇女骨盆入口、中骨盆及骨盆出口平面每个平面的径线均小于正常值2cm,因此诊
第27题: [单项选择]Any discharge into the sea of oil or oily mixtures from ships to which this Annex of MARPOL 73/78 applies shall be()except when special conditions are satisfied. A. required B. requested C. promoted D. prohibited 参考答案:D