皮皮学，免费搜题
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【单选题】
消除散射线的最有效方法是
A.
增加肢-片距
B.
使用滤线栅
C.
缩小照射野
D.
固有滤过
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【单选题】预测想象推断 The city of Rome has passed a new law to preventcrueltyto animals. All goldfish bowls are no longer allowed and dog owners mustwalktheir dogs. This comes after a national law waspassedto give p...
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