超声检查时,哪种表现可确诊异位妊娠()
A.附件区显示形状不规则包块
B.宫腔空虚
C.腹腔内肠管漂浮
D.直肠子宫陷凹有积液
E.宫旁包块内可见妊娠囊
参考答案:E
I usually hung out with my friends after school last year.
A.did some shopping
B.walked around
C.went for a drive
D.played sports
发达国家在工业化完成后,年人均用电量一般为()千瓦时。
A.4500-5500
B.4000-4500
C.4500-5000
D.5000-5500