单选题 Which of the following symptoms can be observed in a person who suffers from the Hunting ton' s disease?

A、 He cannot remember what he has done but can remember trying to learn.
B、 He cannot do something new but he can remember doing it.
C、 He suffers from a bad memory and lack of motor skills.
D、 He suffers from a poor basal ganglia and has intact explicit memory

【正确答案】 B

【答案解析】根据第一段第三句a Huntington’s patient can’t do it(draw a mirror)but can re member trying to learn．可知患有Huntington的病人虽然不能做一些事情，但是他们可以记得曾经做过的事情。所以答案为选项B。