与“放大摄影”放大率无关的因素是（）
A.胶-片距
B.焦-片距
C.焦-肢距
D.曝光条件
E.焦点大小
参考答案：D
— What do you want to do next? We have half an hour until the football game.
— ____ .Whatever you want to do is fine with me. [ ]
A. It just depends
B. It's up to you
C. All right
D. No wonder
终聚系统停电后，需要做的是（）。
A、将终聚真空系统停止
B、将反应釜用氮气破空
C、将反应釜停止进料
D、将反应釜停止出料
