试结合实际论述对儿童进行正面教育的方式与方法。
静力学公理是将人类经过长期的观察和实验所积累的经验加以概括和总结而得出的结论，它的正确性可以在实践中得到（）。 ["证明","发展","推广","验证"]
已知，客户某周的投放数据为CPC=1.2，CTR=1.8%，ROI=1.3，请问CPM=？（） ["31.6","21.6","23.4","32.4"]
（）分为若干层次并以此作为聘任和兑现工资的依据，而（）一般不区分层次，且不直接与国家颁布的工资标准相对应。 ["职业资格，执业资格","执业资格，职业资格","职业资格，职称","职称，执业资格"]
Which two valid declarations of a char？（） [" Char ch = “a”；"," Char ch = ‘\\’ ‘；"," Char ch = ‘cafe’；"," Char ch = “cafe”；"," Char ch = ‘\\ucafe’；"," Char ch = ‘\\u10100’；"," Char ch = （char） true；"]
大气校正
