Given the following code: public class Person{ 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."]
属于社会主义新闻事业指导方式的有()。 ["思想指导","政策指导","信息指导","典型指导","警戒指导"]
Meta标签中的index和NOindex可以同时使用吗()。 ["可以","不可以","根据需要,灵活设置。"]
金融中介可以分为交易中介和服务中介,下列属于交易中介的是() ["会计师事务所","投资顾问咨询公司","律师事务所","有价证券承销人"]
吴歌
试述质膜的结构及功能?