[判断题]有一个JavaScript数组长度是3，其中：x[0]=“a“;x[1]=“b“;x[2]=“c“;如果要在该数组后添加一项，只要x[3]=“d“;就可以了（ ） 。
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2023-11-01 14:29:55|
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[判断题]有一个JavaScript数组长度是3，其中：x[0]=“a“;x[1]=“b“;x[2]=“c“;如果要在该数组后添加一项，只要x[3]=“d“;就可以了（ ） 。
A.对
B.错
A.对
B.错
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