患者男，56岁，消瘦乏力2个月，腹部持续隐痛及排便次数增加1周，便中带血2次。查体：
题型：单项选择题 案例分析题
问题：
患者男，56岁，消瘦乏力2个月，腹部持续隐痛及排便次数增加1周，便中带血2次。查体：贫血貌，腹稍胀，全腹软，右上腹轻压痛，无肌紧张，未及肿块，肠鸣音正常。
为明确诊断，首选的检查是（）.
A.肛门指诊
B.血清CEA
C.纤维结肠镜
D.立位腹部X线平片
E.腹部CT
F.腹部超声
题型：单项选择题 案例分析题
请先阅读下面短文，掌握其大意，然后根据短文内容从下面方框内的七个选项中，选择五个还原到文中，使短文意思通顺、结构完整，并将答案写在答题卷相应位置上。(每小题2分)
Dear Lucy,
Why are you always very angry with Ann? I think you should stop it now.
You think she really wanted the P.E. teacher to know that you weren’t really sick yesterday, and that you went home just to study for your math test the next week. But let me tell you:小题1: . Ann is an honest(诚实的) girl. If you don’t want Ann to tell anyone your secret, you shouldn’t tell her the secret at all.
小题2: when the teacher asked her where you were. When she finally told the teacher“I think she felt sick and went home”, her face was all red. The teacher, of course, knew Ann wasn’t telling the truth (事实). So he asked Ann, “Is that really true?” Then Ann just looked down and said nothing. That’s how the teacher knew you weren’t sick yesterday. So the truth is: 小题3: .
I think you should forgive(原谅) Ann and stop acting like a baby. Before you went home, you should have let the teacher know first.小题4: I think you should tell Ann you are sorry for asking her to do something wrong.
小题5: : do you really want to lose a friend because of something silly?
Love,
Linda