冬季使用气瓶,气瓶的瓶阀等发生冻结时,宜用小火烘烤,解冻后再正常使用。
参考答案:错
对于大、中型水电站的浅水倾斜拦污栅,一般是人工用齿耙扒掉拦污栅上的污物,小型水电站常用清污机清除污物。
TCP/IP (71) layer protocols provide services to the application (72) running on a computer. The application layer does not define the application itself, but rather it defines (73) that applications need — like the ability to transfer a file in the case of HTTE In short, the application layer provides an (74) between software running on a computer and the network itself. The TCP/IP application layer includes a relatively large number of protocols, with HTTP being only one of those. The TCP/IP (75) layer consists of two main protocol options — the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).
A. iteration B. object C. interface D. activity