直肠指诊未见异常
A．直肠癌B．肛裂C．肛瘘D．低位直肠息肉E．外痔
参考答案：E
—I’ll call Bob and tell him the good news.
—You __________ do that. He was here just now and heard it.
A．couldn’t
B．mustn’t
C．shouldn’t
D．needn’t
选择性5-HT再摄取抑制剂抗抑郁药包括（）
A．曲唑酮
B．氟西汀
C．帕西罗汀
D．舍曲林
E．西酞普兰
