四肢迅速、不规则、无节律、粗大的各种运动,有些与随意运动相似,但不能随意控制()
A.偏身投掷运动
B.舞蹈症
C.静止性震颤
D.扭转痉挛
E.手足徐动症
参考答案:B
The last time we had great fun was _____ we were visiting the Water Park.[ ]
A. where
B. how
C. when
D. why
试述色素痣恶变的主要征象有哪些。