银汞化合物调和24h后产生0.05%~0.01%的膨胀有利与洞壁密合,下列膨胀较少的是()A、缩短调和时间B、锌含量大于1%C、减少充填压力D、铜含量2%E、适当增大合金粉粒度
银汞化合物调和24h后产生0.05%~0.01%的膨胀有利与洞壁密合,下列膨胀较少的是()
- A、缩短调和时间
- B、锌含量大于1%
- C、减少充填压力
- D、铜含量2%
- E、适当增大合金粉粒度
相关考题:
右室室壁激动和左室室壁激动时间分别为()A、0.01~0.02秒,0.02~0.05秒B、0.01~0.02秒,0.02~0.05秒C、0.01~0.04秒,0.02~0.06秒D、0.01~0.05秒,0.02~0.04秒E、0.01~O.15秒,0.02~0.04秒
单选题右室室壁激动和左室室壁激动时间分别为()A0.01~0.02秒,0.02~0.05秒B0.01~0.02秒,0.02~0.05秒C0.01~0.04秒,0.02~0.06秒D0.01~0.05秒,0.02~0.04秒E0.01~O.15秒,0.02~0.04秒
单选题银合金粉与汞调和时,增加汞的用量将导致()A强度增加,膨胀减小B强度增加,膨胀增加C强度降低,膨胀减小D强度降低,膨胀增加