特色菜是不是可数名词

　　The special plane took off.

　　专机起飞了。

　　The special agents broke into his room and rummaged through chests and cupboards but couldn't find anything suspicious.

　　那些特务冲进他的房间翻箱倒柜地搜了一遍，但没有发现任何可疑的东西。

　　The special zone is located beyond the customs house.

　　特区设在关境之外。