P. E. is my favorite subject because it' 发布时间:2017-06-29 17:27 │ 来源:www.tikuol.com 题型:选择题 问题: P. E. is my favorite subject because it's _____. [ ]A. fun B. boring C. scary D. bad
题型:选择题 The main purpose of the talk is to ______.A.illustrate how wheels, cameras and computers were inventedB.discuss how great inventions influence our way of livingC.compare people’s attitudes towards new inventionsD.compare inventions of the 19th century with that of the 20th century 查看答案
题型:选择题 (5分)瑞瑞同学对串联电路电压规律进行了探究【猜想与假设】串联电路总电压等于各用电器两端的电压之和【设计与进行实验】⑴ 按图所示的电路图连接电路;⑵ 闭合开关,用电压表测出L1两端的电压;⑶ 在测L2两端的电压时,瑞瑞同学为了节省实验时间,采用以下方法:电压表所接的B接点不动,只断开A接点,并改接到C接点上;⑷测出AC间的电压.【交流与评估】⑴在拆接电路时,开关必须_ _.⑵瑞瑞同学用上面的方法能否测出L2两端的电压?为什么? ____ ________.UAB/VUBC/VUAC/V2.41.43.75⑶方法改进后,测出AB、BC、AC间的电压记录在右面表格中.分析瑞瑞同学的实验数据可以得出的结论是:串联电路总电压___ __各用电器两端的电压之和(填“等于”或“不等于”).⑷这个实验在设计方案上还存在的不足之处是: 查看答案
题型:选择题 选择相应的句子,补全对话。( ) 1. _________ It's Tuesday.( ) 2. Is it windy? _________( ) 3. _________ It's sunny.A. No! It's snowy. B. How's the weather today?C. What day is tomorrow? 查看答案