取样观察法主要包括()。 ["时间取样","事件取样","直接取样","间接取样"]
Which two statements are true about broadband cable (HFC) systems?() ["Cable modems only operate at Layer 1 of the OSI model.","Cable modems operate at Layers 1 and 2 of the OSI model.","Cable modems operate at Layers 1, 2, and 3 of the OSI model.","A function of the cable modem termination system (CMTS) is to convert the modulated signal from the cable modem into a digital signal.","A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system."]
网站测试与发布
减轻、加重处分,是指在应当受到的处分幅度以内给予较轻或者较重的处分。
性行为的神经激素调控机制包括() ["心理因素","中枢神经系统","大脑","激素","身体因素"]
一个社会普遍的、大众的()是社会法治化程度的基本指标。