【名词&注释】
宫内节育器(iud)、门静脉高压(portal hypertension)、长效口服避孕药(long acting oral contraceptives)、新婚夫妇(newly married couple)、安全期(safe period)、腹壁静脉曲张(varicosity of abdominal wall)、不容易(not easy)
[单选题]下列哪项叙述是错误的
A. 腹壁静脉曲张(varicosity of abdominal wall)可见于上腔静脉梗阻
B. 腹壁静脉曲张(varicosity of abdominal wall)可见于下腔静脉梗阻
C. 腹壁静脉曲张(varicosity of abdominal wall)可见于门静脉受阻
D. 腹壁静脉曲张(varicosity of abdominal wall)可见于脾静脉受阻
E. 门静脉高压时在脐部可听到"营营"音