【名词&注释】
胆总管(common bile duct)、清热解毒(heat-clearing and detoxifying)、共同点(common ground)、肠系膜上静脉(superior mesenteric vein)、肠系膜下静脉(inferior mesenteric vein)、门静脉主干(main portal vein)
[单选题]汇合成门静脉主干(main portal vein)的静脉是
A. 肠系膜上静脉和肠系膜下静脉(inferior mesenteric vein)
B. 肠系膜下静脉(inferior mesenteric vein)和脾静脉
C. 肠系膜下静脉(inferior mesenteric vein)和冠状静脉
D. 肠系膜上静脉和脾静脉
E. 肠系膜上静脉和冠状静脉