第3题: [单项选择]The existing terrestrial radio system has a number of basic flaws which(). A. can be overcome by using traditional techniques B. can not be overcome by satellite system C. can be overcome by satellite and digital techniques D. can not be tackled by any modern system 参考答案:C
第30题: [多项选择]患儿入院后可能出现的心理状态是 A. 恐惧 B. 反抗 C. 紧张 D. 焦虑 E. 喜悦 参考答案:A,B,C,D
第31题:[单选题]下列哪个选项的java源文件代码片段是不正确的? A.package testpackage;
public class Test{ } B.import java.io.*;
package testpackage;
public class Test{ } C.import java.io.*;
class Person{ }
public class Test{ } D.import java.io.*;
import java.awt.*;
public class Test{ } 参考答案:B