linux系统中,以下显示结果不同的是()。
- A、echo The current working path is $PWD.
- B、echo 'The current working path is $PWD.'
- C、echo "The current working path is $PWD."
- D、echo "The current working path is `pwd`."
正确答案:B
答案解析:有

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linux系统中,以下显示结果不同的是()。
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