判断题影响构件持久极限的主要因素有:构件形状、尺寸、表面加工质量和表层强度。()
判断题映像文件是一种文本文件()
判断题收发天线采用不同的极化方式会导致极化损耗。()
判断题Generally speaking, formal culture is commonly known as capital letter 'C' culture, namely a country's geography, history, nature, politics, philosophy, literature, economy, education, science and technology, etc.()此题为判断题(对,错)。
判断题The symbolic nature of communication means that the words we speak or the gestures we make have no inherent meaning. ()