患者，女性，46岁，直肠与肛管周围的间隙发生了感染，可能是因为间隙之间充满（）。
A.血管
B.神经
C.脂肪组织
D.肌肉
E.肌腱
参考答案：C
--- What did the teacher say to you just now?
--- She asked me _______________.
A．whether I had finished my work
B．if had I finished my work
C．that I had finished my work
D．how long had I finished my work
临床诊断前列腺癌的基本方法是()
A．CT
B．MRI
C．排泄性尿路造影
D．全身核素骨扫描
E．直肠指诊、经直肠超声和血PSA测定
