简述证据保全的意义。
public class X { public static void main (String[] args) { byte b = 127; byte c = 126; byte d = b + c; } } Which statement is true?() [" Compilation succeeds and d takes the value 253."," Line 5 contains an error that prevents compilation."," Line 5 throws an exception indicating “Out of range”"," Line 3 and 4 contain error that prevent compilation."," The compilation succeeds and d takes the value of 1."]
社会性行为问题的一般特征有:()、不受普遍方法控制的行为、不理会现实、幼儿生活中存在客观困难。
房屋建筑工程所在地的县级以上地方人民政府建设行政主管部门发现建设单位在竣工验收过程中有违反国家有关建设工程质量管理规定行为的,应当在收讫竣工验收备案文件()d内,责令停止使用,重新组织竣工验收。 ["10","15","20","25"]
虽然各种焦虑行为的干预指导策略有所不同,但是让幼儿接触引起焦虑的环境,()和()是所有指导策略的基本路线。
简述证据保全的种类。