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【单选题】
长28cm的持物镊浸泡消毒时,容器内的消毒液面高度为A.
10cm
B.
12cm
C.
14cm
D.
16cm
E.
18cm
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【单选题】已知Person类, Person p1=new Person(); 则p1是:
A.
引用变量，指向Person的对象
B.
和基本数据类型变量一样，可以有p1=20;
C.
p1是形参
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D.
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B.
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C.
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D.
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