胃癌患者应考虑发生了远处转移是因为具临床表现出现了（）

A.贫血

B.腹水

C.消瘦

D.上腹部触及肿块

E.直肠指诊触及盆腔肿块

The square knot is used for（）.

A.forming temporary eyes in lines

B.joining two lines of equal size

C.keeping line from unlaying or fraying

D.joining two lines of different size