【简答题】In the world there are different forms of family groups. In modern western societies, a family group is usually small, made up of a man, his wife, and his children. About a hundred years ago, it was u...
【简答题】A smaller number of parents send messages ________ for suggestions for their sons or daughters. (ask)
【判断题】直复营销,源于英文词汇 Direct Marketing, 即“直接回应的营销”它是以盈利为目标。
【单选题】Sons or daughters of my uncle are my cousins .
【单选题】Sons or daughters of my uncle are my (cousins).
【单选题】局域网交换机的( )帧转发方式适合多种传输速度的环境。
【单选题】一平面简谐波沿x轴负方向传播.已知x = b处质点的振动方程为 ,波速为u,则波的表达式为:
【单选题】如果固定资产和流动资产的配备比例不合理,会产生什么风险