【判断题】捏合手势中,scale表示手指捏合,大于1代表两个手指间的距离变大。
【单选题】研究同类现象的数量特征,前提是每个个体是具有 性。
【简答题】阅读理解。 Today is my birthday. I want to thank my family for their love. So I cook the dinner for them. I know my mother likes hamburgers and broccoli. But my father likes chicken and tomato soup. I have...
【简答题】Michael: I ( ) (call) my mother yesterday to tell her the news. Claire: How did she take it? Michael: Of course, she was sad to hear my dog died.
【简答题】根据句意和首字母提示完成句中所缺的单词。 1. My father and mother are my p _________. 2. My father's brother is my u _________ . 3. My mother's sister is my a __________ . 4. My mother's mother is my g _________ . 5. My ...
【简答题】生活中处处是化学,请用所学知识回答下列问题. (1)水垢的主要成分是______. (2)硝酸铵又称“硝铵”,是一种常用氮肥,向硝酸铵溶液中加入紫色石蕊试液,试液变红色,硝酸铵溶液显______(填“酸性”、“碱性”或“中性”)pH值______7(大于、小于、等于) (3)食醋中含3%~5%的醋酸,生活中常用食醋清洗水垢【Mg(OH) 2 和CaCO 3 】.已知醋酸在水中能电离出CH 3 CO...
【简答题】硝酸铵水溶液的pH 7 ,能使石蕊试液显 色。
【单选题】A: My mother and father don't fight very often. B: ____
【简答题】When I got home, I called my mother. ( ) , I called my mother.