1897年,盛宣怀创办的南洋公堂,其中的外院即为小学,这是我国最早的公立小学堂。
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不符合轮轴更换条件的为()
A. 车轮裂纹;有辐板孔车轮辐板孔径向裂纹,周向裂纹大于10mm
B. 车轮踏面圆周磨耗深度大于7mm
C. 车轮踏面上粘有熔化金属无法清除
D. 空车脱轨后的同一转向架轮轴
《诗经》所收录的诗歌时代是()。
A. 商朝至西周
B. 西周初年至春秋中叶
C. 西周末年至战国
D. 春秋至战国
获得证券从业资格证书后超过12个月而未在证券专业岗位就只的,其资格证书自动失效
A. 正确
B. 错误
If you create your database using Oracle Managed Files (OMF), what is true?()
A. You must use Oracle predefined names to identify raw partitions that will hold OMF structures.
B. You must define directories for two online redo log groups and three copies of the control file.
C. If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically.
D. You must use only OMF data files when adding new tablespaces or data files to your database in the future.