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以下叙述中正确的是_____

单选题
2021-09-01 19:30
A、a是实型变量,C语言允许进行以下赋值a=10,因此可以这样说:实型变量中允许存放整型值
B、在赋值表达式中,赋值号右边即可以是变量也可以是任意表达式
C、执行表达式a=b后,在内存中a和b存储单元中的原有值都将被改变,a的值已由原值改变为b的值,b的值由原值变为0
D、已有a=3,b=5当执行了表达式a=b,b=a之后,已使a中的值为5,b中的值为3
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正确答案
B

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