In the COURSE_ENROLLMENT form module, you define a master-detail relation between the COURSES_OFFERED data block and the STUDENT data block, respectively. To implement block coordination, which statement must be true?()
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public class X { public object m () { object o = new float (3.14F); object oa = new object [1]; oa[0]= o; o = null; return oa[0]; } } When is the float object created in line 3, eligible for garbage collection?()
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1.Now read the following sentences. Check True (T), False (F), or Not Mentioned (NM) in the box given below.Beth and Linda don’t have elder brothers.( )
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将序列(p, h, n, d, y, a, f, q, x, m, c, e)中的关键码按字母升序重新排序, 初始步长为4的shell排序一趟扫描的结果为(用一个空格分隔字母) Sort the key of sequence (p, h, n, d, y, a, f, q, x, m, c, e) in ascending alphabetical order. The result of a
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