小凡4岁了,可是对幼儿园的集体生活适应很慢,入园时哭闹得非常厉害,不肯到其他班参加课内兴趣班活动,也不能与同伴合作分享玩具,出现明显的不合群现象。结合案例,分析影响学前儿童同伴交往的因素。
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脑部细菌感染,首选()药物进行治疗
A. 庆大霉素
B. SD
C. 土霉素
D. TMP
You work as a database administrator for Supportcenter.cn. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()
All control files are opened
B. All redo files are opened
C. The password file is opened
D. The parameter file is opened
E. All online data files are opened
《中华人民共和国劳动法》:用人单位应当保证劳动者每周至少休息()日。
A. 一日
B. 二日
C. 三日
D. 四日