停经11周，腹痛、 * * 大量出血，宫颈口可见胚胎组织堵塞
A．内出血B．外出血C．腹腔出血D．颅内出血E．血尿
参考答案：D
You need to take notes at the meeting so make sure _________ a pen and some paper with you.
A．bring
B．bringing
C．to bring
D．not bring
进入体内的载药微粒被巨噬细胞作为外来异物所吞噬而实现靶向的制剂是
A．微球B．pH敏感脂质体C．磷脂和胆固醇D．纳米粒E．前体药物
