A neighbor told me about him. He ______ Percy Buttons was a beggar()
A. told
B. said me
C. told to me
D. said
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What time did it stop? ______ five to twelve()
A. on
B. at
C. in
D. during
能否有效破除形式主义、官僚主义关系到党和国家重大决策部署能否落实到位,关系到全面从严治党能否取得更大战略性成果()
温度升高时,晶体管的电流放大系数β()
A. 升高
B. 降低
C. 不变
D. 无法确定