男，28岁。发现全身多发肿物，偶有疼痛2个月。查体：胸、腹壁及双上肢皮下对称性散在分布多个肿物，直径1．0～2．5cm不等，与皮肤无粘连，质软，表面光滑，活动度较大，有分叶感，部分有轻压痛，诊断考虑为（）。

A.皮脂腺囊肿

B.神经纤维瘤病

C.多发性脂肪瘤

D.血管瘤

E.混合瘤

Floors aboard ship are（）.

A.also called decks

B.vertical transverse plates connecting the vertical keel with the margin plates

C.large beams fitted in various parts of the vessel for additional strength

D.found in passenger and berthing spaces only