内脏大神经主要终于
A．肠系膜上神经节
B．肠系膜下神经节
C．主动脉肾节
D．腹腔神经节
E．奇神经节
参考答案：D
If you had told him the truth, he ______ so angry now．
A．isn't
B．wasn't
C．wouldn't be
D．wouldn't have been
下列哪一项不是使人群易感性降低的因素（）。
A.传染病流行
B.易感人口的迁出
C.计划免疫
D.免疫人口的死亡
E.隐性感染后免疫人口增加
