题目内容

以下属于DatagramPacket类中的常用方法的有()。

A. getAddress();
B. getPort();
C. getData();
D. getLength()。

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以下哪些属于InetAddress类的一些常用方法()。

A. getByName(String host);
B. getLocalHost() ;
C. getHostName();
D. getHostAddress()。

1.2Replace the underlined part in each of the following sentences with a word or phrase from the box below. Write your answer in the brackets. Make changes or additions where necessary.enable , dwarf, on track, and so forth, around the corner1. You see the lights in the students' reading room? They never go out at night these days because the final exams are drawing near. ( )2. At that time the working class was still too small to makea successful revolution there. ()3.The high-rise building in the back makes our old house seem small. ()4.The figures show that our economy is healthy and we are likely to achieve sustainable and balanced (平衡的) growth. ( )5.The two girls spent the whole night planning the summer events, get-togethers, dinner parties, and many other things of the kind. ()

Select proper words to fill in the blanks.conserve, preserve, reserve, deserve1.We are ________ these seats for my parents.2.Effective measures must urgently be taken to _ these endangeredspecies of wild animals.3.To __________ a friend, three things are required: to honor him when present, praisehim when absent, and assist him in his necessities.

Match the phrases with correct Chinese meaning.