下述体表肿瘤中哪一种是真性肿瘤（）
A.皮脂囊肿
B.腱鞘囊肿
C.皮样囊肿
D.表皮样囊肿
E.滑膜囊肿
参考答案：C
—Last week American doctors ______ his foot.
—They say Liu Xiang may run ______ after the operation. [ ]
A. operated on; even faster
B. operation on; even fast
C. operated to; much faster
D. operated; more faster
主再热蒸汽管道附件的基本要求有哪些？
