我国《宪法》不涉及道德建设的问题。
Which Internet Protocol(IP) telephony element is best categorizedas a voice application component?（） ["Voice gateway","Private branch exchange (PBX)","Advanced audio conferencing software","IP telephone"]
投资基金的特点不包括（）。 ["规模经营","集中投资","专家管理","服务专业化"]
自我实现理论
By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（） ["1\/6","1\/4","1\/3","1\/2"]
莱氏体
