21.遺傳咨詢過(guò)程中，對(duì)于常染色體隱性遺傳病，夫妻均為攜帶者，生育過(guò)一患兒，再生育子女預(yù)期風(fēng)險(xiǎn)率是(      )
A.兒子1/4，女兒1/2                                   B.兒子1/2，女兒1／4
C.均為1/4                                                   D.均為1／2
22.早期流產(chǎn)是指妊娠終止時(shí)孕周不足(      )
A.12周                                                       B.16周
C.24周                                                       D.28周
23.下列羊水檢測(cè)中提示胎兒肺成熟的指標(biāo)是(      )
A.膽紅素類(lèi)物質(zhì)值                                       B.卵磷脂／鞘磷脂比值
C.淀粉酶值                                                 D.肌酐值
24.診斷胎兒地中海貧血的方法是(      )
A.經(jīng)皮臍靜脈穿刺取胎血                            B.羊膜腔胎兒造影
C.絨毛活檢                                                 D.羊水穿刺
25.陰道鏡檢查中使用3%冰醋酸的主要目的是(      )
A.術(shù)中止血
B.消毒宮頸預(yù)防感染
C.減少宮頸分泌物便于手術(shù)操作
D.使組織凈化并腫脹便于病變部位的觀察
26.關(guān)于排卵性功血，下列描述正確的是(      )
A.基礎(chǔ)體溫呈單相型                                   B.子宮內(nèi)膜呈分泌反應(yīng)
C.好發(fā)于青春期女性                                   D.宮頸黏液涂片可見(jiàn)羊齒狀結(jié)晶
27.絨毛膜癌主要的死亡原因是(      )
A.腦轉(zhuǎn)移                                                     B.肺轉(zhuǎn)移
C.肝轉(zhuǎn)移                                                     D.陰道轉(zhuǎn)移
28.完全性葡萄胎的病理變化是(      )
A.絨毛結(jié)構(gòu)消失                                          B.病變侵入子宮肌層
C.滋養(yǎng)細(xì)胞有出血及壞死                            D.滋養(yǎng)細(xì)胞呈不同程度增生
29.關(guān)于婦科腹部手術(shù)術(shù)前準(zhǔn)備內(nèi)容，下列描述錯(cuò)誤的是(      )
A.子宮肌瘤剔除術(shù)術(shù)前陰道沖洗后在子宮頸及穹隆處涂龍膽紫
B.卵巢腫瘤細(xì)胞減滅術(shù)術(shù)前3日開(kāi)始腸道準(zhǔn)備
C.全子宮切除術(shù)術(shù)前留置導(dǎo)尿管
D.卵巢囊腫剔除術(shù)術(shù)前1日備皮
30.目前認(rèn)為與子宮肌瘤的發(fā)生和生長(zhǎng)有關(guān)的因素是(      )
A.雌激素長(zhǎng)期刺激                                       B.心情抑郁
C.生活環(huán)境惡劣                                          D.生育過(guò)多