She has been working hard day and night, which of course, _______ her pale face.

A．accounts for

B．stands for

C．goes for

D．answers for

白塞病的临床特征为（）

A.皮肤红斑、丘疹、水疱，口腔大小不等水疱，破溃后呈糜烂面。反复发作，部位固定

B.皮肤红斑、丘疹、水疱或斑丘疹多见于手、足底部皮肤或臀部皮肤，口腔为相互融合的疼痛性小水疱

C.皮肤结节性红斑、毛囊炎、疖肿。口腔为反复发作的圆形或椭圆形溃疡，另可出现眼及外生殖器病损

D.皮肤大疱，口腔黏膜大小不等的透明水疱

E.皮肤蝶形红斑，口腔黏膜萎缩性红斑，周围有短小的放射状条纹围绕