永久性寄生虫，指一生中只有一个或几个发育阶段在宿主体内或体表完成的寄生虫，如血矛线虫、马皮蝇。

肌肉或神经组织细胞浆内NADH进入呼吸链的穿梭机制主要是

未知题型肌肉或神经组织细胞浆内NADH进入呼吸链的穿梭机制主要是

Unlike theGeneral Agreement on Tariffs and Trade (GATT ...

单项选择题Unlike theGeneral Agreement on Tariffs and Trade (GATT 1994), the General Agreement on Trade in Services (GATS) does not allow developed and developing member states to enter into negotiations (similar to the GATT’s General System of Preferences and South-South Preferences) to help improve the capacity, efficiency, and competitiveness of developing member states.
A、正确
B、错误

FTP服务器的主要用途是（）。 A.浏览网页B.收发邮件C.文件传输D.聊天

单项选择题FTP服务器的主要用途是（）。