铸铁补焊前，必须采用X射线探伤确定缺陷的位置。（）
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下列字符常量中，哪个表示反斜杠字符“\”
A. \'
B. \"
C. \\
D. \'\
下列关于Swing说法不正确的是
A. 每个Swing构件的程序必须有一个容器
B. Swing是AWT的扩展
C. Swing采用的MVC的思想
D. Swing构件以“J”开头
Which of the following statements is Kongkiet's advice to graduates
A. You'd better start with a smaller company.
B. You'd better join a big company.
C. You can gain "the big picture" working in a big company.
D. You can begin your career with a new organization to learn the process and discipline.
What is the specific feature of fossil fuels
A. They are colorless.
B. They are odorless.
C. They are rich in carbon.
D. They are easy to freeze.
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