有专家指出二十世纪五十年代中期是当时党的第一代领导集体充分展示执政能力的时期。试结合当时政治、经济、思想、外交和民族政策等相关内容加以说明。
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一个5岁女童低度发热，口咽部疼痛，口腔粘膜、牙龈、咽部、嘴唇，以及手和脚后跟边缘有无数水疱状病变。小泡不含巨细胞或异常细菌。此病在7天后自愈。患者感染的途径是（）
A. 患者感染的途径是：
B. 呼吸道飞沫传播
C. 粪-口途径
D. 皮肤直接接触
E. 母-婴传播
F. 恙螨叮咬
对骨骼肌兴奋作用强的药物为（）
A. 毛果芸香碱
B. 烟碱
C. 乙酰胆碱
D. 氯贝胆碱
E. 新斯的明
You issue the following command on the RMAN prompt. REPORT NEED BACKUP DAYS 5; Which statement is true about executing this command?（）
A. It will display a list of files that need incremental backup
B. It will display a list of files that need backup after five days
C. It will display a list of files that were backed up in the last five days
D. It will display a list of files that have not been backed up in the last five days
E. It will apply the current retention policy to determine the files that need to be backed u
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