用空气进行密封性检查时,最早也要在结束密封工作()后进行。
A.12小时
B.24小时
C.30小时
D.两昼夜
参考答案:D
Jane Austen’ s first novel ________ tells a story about two sisters and their love affairs.
A.Sense and Sensibility
B.Pride and Prejudice
C.Northanger Abbey
D. Mansfield Park
下列代码的执行结果是( )。 public class Test 2 public static void main (String arg[]) System.out.println(100%3); System.out.println(100%3.0);
A.1和1B.1和1.0C.1.0和1D.1.0和1.0