Which statement is true?()
A class’s finalize() method CANNOT be invoked explicitly.
B. super.finalize() is called implicitly by any overriding finalize() method.
C. The finalize() method for a given object is called no more than once by the garbage collector.
D. The order in which finalize() is called on two objects is based on the order in which the two objects became finalizable.
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侵袭性葡萄胎与绒毛膜癌最常见的转移部位是()
A. 肝
B. 脑
C. 肺
D. 阴道
E. 宫颈
过盈配合是孔的公差带在轴的公差带(),即孔的实际尺寸()(或等于)轴的实际尺寸而具有过盈(包括最小过盈等于零)的配合。