免征额是指对征税对象总额中免予征税的数额。即将纳税对象中的一部分给予减免，只就减除后的剩余部分计征税款。()
参考答案：对
根据招领启事回答问题。
Found:
Is that your black pen?
Please call Marv at 236-2283.
①What is lost?
______________________________________________
②What color is it?
③he found it?
_______________________________________________
④What's the telephone number?
⑤Is Mary a good girl?
为什么往复式压缩机必须留有余隙？
