下列有关国家教委规定的"学生每天在校的教育教学活动总量(含自习时间)"的说法,错误的 发布时间:2020-02-03 05:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列有关国家教委规定的"学生每天在校的教育教学活动总量(含自习时间)"的说法,错误的是()A、小学不超过6小时B、初中不超过8小时C、高中不超过8小时D、寄宿制初中不超过11小时
题型:单项选择题 完形填空。结合上下文及所给首字母填空。 This i_____ (1) a classroom. It is nice a_____(2) bright, but it is s_____(3). The doors and w_____(4) are clean. The desks and chairs are clean, t_____(5). The walls are white. O_____(6)the front wall there is a b_____(72). The teacher's desk is near it. On the desk there are s_____(8)flowers and pencils. There is a clock on the wall. It's not old. It is n_____(9).Now there are o_____(10)eight students in the room. They are cleaning the classroom. 查看答案
题型:单项选择题 下列卤代烃在KOH醇溶液中加热不反应的是( )①②(CH3)3CBr③(CH3)3CCH2Cl ④CHCl2CHBr2 ⑤ ⑥CH3Cl.A.①③⑥B.②③⑥C.全部D.①②⑥ 查看答案
题型:单项选择题 ()可以排除由于时间不同而产生的实验误差,从而提高实验结果的准确性。A.无控制组的事前事后对比实验B.有控制组的事前事后对比实验C.控制组实验组同时试验D.控制组实验组对比实验 查看答案