扁平苔鲜的典型皮损为()
A.面部、四肢对称性靶形红斑
B.面部突出部蝶形红斑
C.四肢紫色扁平丘疹
D.手掌、足底、臀部皮肤丘疹、斑疹和水疱
E.下肢结节性红斑
参考答案:C
E-shopping, when properly _____ ,can save us a lot of time and energy.
A.done
B.doing
C.to do
D.is done
Please turn ______ the light when you leave the room. [ ]
A. off
B. on
C. up
D. down