隔爆电气设备不传爆的三要素是指()。 ["隔爆面长度","隔爆面间隙","隔爆面粗糙度","隔爆面型状"]
Given the following code: public class Person{ static int arr[] = new int[10]; public static void main(String a[]) { System.out.println(arr[1];) } } Which statement is correct?() [" When compilation some error will occur."," It is correct when compilation but will cause error when running."," The output is zero."," The output is null."]
计量工作实质是为()提供计量保证。 ["群众","个人","社会","集体"]
假定从某一股市采样的股票为A、B、C、D四种。在某一交易日的收盘价分别为5元、16元、24元和35元,基期价格分别为4元、10元、16元和28元,基期交易量分别为100、80、150和50,用加权股价平均法(以基期交易量为权数,基期市场股价指数为100)计算的该市场股价指数为() ["138","128.4","140","142.6"]
联合国《儿童权利公约》()暨《儿童公益组织行为准则指南》倡导活动在京举行。 ["27周年纪念","28周年纪念","29周年纪念","30周年纪念"]
为什么说神示证据制度的出现和长久存在,是符合当时的历史条件的?