在电脑设计中，塑造色彩的基本手段是（） ["色相变化","阶调调节","明度变化","纯度调节"]
Which two statements are true about the protocols that are used for transmitting voice traffic？（） ["RTP multiplexing is used to keep multiple phone conversations separate","RTP provides end-to-end delivery services for voice traffic","UDP is used to ensure a reliable transmission from sender to receiver","RTP is used to provide resource reservation for the voice stream","UDP provides multiplexing"]
商人第一次作为被歌颂的对象进入文学世界是在（）。 ["《水浒传》","《红楼梦》","“三言”“二拍”","《儒林外史》"]
“古文运动”所取得的成就不包括（）。 ["A、造就了一批散文大家 ","B、一扫空洞华丽的文风 ","C、增强了作家的社会责任感 ","D、诗词创作出现了繁荣景象"]
The IPv6 address FE80：：656：78FF：FE9A：BCDE is what type of address？（） ["Site-local","Link-local","Multicast","None of the above"]
微生物菌种的自然选育是指利用微生物在一定条件下产生（）的原理，通过分离、筛选排除（），选择维持原有生产水平的菌株。
