If Sanlu Group _____ melamine to the milk, the babies _____ too much from kidney stone. [ ]

A. didn't add; would not suffered

B. hadn't added; wouldn't have suffered

C. hasn't added; wouldn't have suffered

D. hadn't added; would have suffered

“20世纪80年代中期，苏联社会已经处于严重的经济、社会、精神道德和政治危机之中……30年前在苏联开始的改革被社会上很多人视为期盼已久的事情。”这里提到的“30年前在苏联开始的改革” [ ]

A．彻底打破了斯大林模式的束缚

B．在农业领域取得了明显的成效

C．改革的重点放在了轻工业方面

D．在改革初期取得了一定的成效