按GB7588-2003《电梯制造与安装安全规范》规定，当轿厢完全压在它的缓冲器上时，底坑应有足够空间，该空间大小能放进一个不小于（）矩形体为准，矩形体可以任何一个面着地。 ["0.5m×0.6m×1.0m","0.5m×0.6m×0.7m","0.4m×0.6m×0.8m"]
简述人的生物性与社会性。
与SUN SPARC Enterprise T5220相比，哪一款POWER Systems服务器性能即可胜出？（） ["POWER520即可","需要POWER550","需要POWER570","需要POWER595"]
按公众的发展过程，可以将政府公众分为非公众、潜在公众、（）公众和（）公众。
A system administrator has created tty2 on a serial port connection to a system. When attempting to verify the connection the following error is observed： # cu -ml tty2 cu： 0835-028 The connection failed. NO DEVICES AVAILABLE. Which of the following should be performed to correct this error？（） ["Create an entry for tty2 in the \/etc\/uucp\/Devices file","Re-enter the command as "cu -dml tty2"","Create an entry for tty2 in the \/etc\/uucp\/Systems file","Re-enter the command as "cu -s 9600 -dh -t -l tty2""]
媒体收集法的信息来源有哪些？
