Could you tell me ____________________ ?

A．what she had done with the newspaper

B．how we can call this lady

C．what’s wrong with the little boy

D．which gate I should go

同一种滤光镜，其颜色越深，说明（）

A.拍摄效果越好

B.滤色作用越大

C.画面效果明显

D.拍摄范围广泛