After a few courses on painting，Helen said she would ________oil pointing in her spare time.

A．look up

B．take up

C．bring up

D．put up

脑干损伤瞳孔变化特征为（）

A、双侧瞳孔散大，固定

B、双侧瞳孔立即缩小

C、一侧瞳孔进行性散大

D、双侧瞳孔大小多变，不等圆

E、两侧瞳孔等大，对光反射不灵敏