【简答题】A. perfect B. popular C. public D. pleasant
【单选题】It _____ sound like a perfect destination, but it is really adventurous to go there. [ ]
【单选题】This is my mother, Mr Green. Mum, Jim. [ ]
【单选题】—Is this your ruler? —No, ______. [ ]
【多选题】以下关于黑素细胞的描述正确的有( )
C.
只有表皮、毛囊、粘膜、视网膜色素上皮等处存在黑素细胞
D.
黑素细胞位于基底层,平均数目约占基底层细胞总数的10%