修改病句。（使用修改符号）
在郑州交会的铁路干线是（ ）
设p、q是简单命题，则“p或q是假命题” 是 “非p为真命题”的（）
____ I'm fine，thanks.
____ Hello, Danny. How are you?
____ What's this?
____ Oh. It's a desk.
____ I'm fine, thanks. And you? (你呢？)
I'm fine，thanks. Hello, Danny. How are you? What's this? Oh. It's a desk. I'm fine, thanks. And you? (你呢？)