题目内容

河南中山大学最早设立政治系是在哪一年?()

A. 1925
B. 1926
C. 1927
D. 1928

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牵引电动机故障切除时,限压数值发生变化。

A. 正确
B. 错误

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原材料因子对经济区位产生哪些影响?

ClassOne.java 1. package com.abc.pkg1; 2. public class ClassOne { 3. private char var = ‘a’; 4. char getVar() {return var;} 5. } ClassTest.java 1. package com.abc.pkg2; 2. import com.abc.pkg1.ClassOne; 3. public class ClassTest extends ClassOne { 4. public static void main(String[]args) { 5. char a = new ClassOne().getVar(); 6. char b = new ClassTest().getVar(); 7. } 8. } What is the result?()

A. Compilation will fail.
B. Compilation succeeds and no exceptions are thrown.
Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
D. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.

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