答案:D
"Life is like walking in the snow", Granny used to say, "because every step ”
A.has shown
B.is showing
C.shows
D.showed
直肠癌早期的临床表现可以包括()
A.大便次数增多
B.粪便混有黏液
C.肛门内不适
D.间歇性少量血便
E.腹部隐痛、下坠感