单选题
As an excellent shooter, Peter practiced aiming at both ______ targets and moving targets.
[A] standing [B] stationary [C] still [D] stable
【正确答案】
B
【答案解析】移动靶是moving target，那么静靶就是stationary target，是固定搭配用法。still和stationary。的区别：二者虽然都有静止的之意，但still一般不在名词前作定语，用法如：I stood still，而stationary则可作定语。句意：作为一名优秀的射手，彼得既要练习瞄准打固定靶，又要练习打活动靶。