【简答题】连词成句。 1. forget, your, umbrella, don't (!) __________________________________________ 2. needs, she, drink, some, to, water (.) __________________________________________
【判断题】计算均方差就是用误差平方和除以相应的自由度
【简答题】将下列段落翻译成中文 Flash steam stations pull deep, high- pressure hot water into lower-pressure tanks and use the resulting flashed steam to drive turbines. They require fluid temperatures of at least 180 °C(...
【简答题】按要求改写句子。 1. Forget your boots and umbrellas! (写出否定句) _________________________________________________________________________ 2. Time to go to school. (写出同义句) ________________________________________...
【简答题】按要求写出下列单词的适当形式. 1. watch(复数) 2. you (反身代词) 3. forget(反义词) 4. forget(过去式) 5. smile(现在分词)
【判断题】平均平方误差就是对误差的平方和取平均值。()