[单选题]向饱和的澄清石灰水中加入少量CaC2，充分反应后，再恢复到原来的温度，所得溶液中，下列说法正确的是()。A.c(Ca2+).c(OH-)均增大B.c(
[问答题]根据提供的信息和语言素材设计教学方案。用英文作答。 设计任务：请阅读下面学生信息和语言素材，设计20分钟的英语听说教学方案。教案没有固定格式，但须包含
[单选题]It is reported that the _________ of the country, from hotels to transport,
[单选题]When selecting listening materials，a text spoken at_________is preferred．A.
[问答题]阅读下列素材，回答相关问题。早在西汉时期，我国劳动人民就已经发现铁能将铜从某些含铜化合物的溶液中置换出来，在宋朝，利用这个反应冶铜的生产已具有了一定的
[单选题]In componential analysis, __________ may be shown as PARENT (x, y) & MALE (
[单选题]The visitors had made so much_________that Mr Water had to spend several da
[问答题]请阅读以下某位老师在进行词汇教学时的情境，回答下面问题。 Step 1复习(revision)互致问候后，教师将装有彩色小图片的信封分发给各小组。 T
[单选题]Which of the following is a communicative activity?A.Listening to the news
[单选题]下列有关物质性质的应用正确的是()。A.液氨汽化时要吸收大量的热，可用作制冷剂B.二氧化硅不与强酸反应，可用石英器皿盛放氢氟酸C.生石灰能与水反应，可
[单选题]When the teacher attempts to elicit more information from the students by s
[单选题]下列哪组实验全部属于《义务教育化学课程标准(2011年版)》规定的基础学生实验()。A.氧气的实验室制取.燃烧的条件.氨气的实验室制取B.氢气的实验室
[单选题]The article is providing advice to__________.A.spend money wiselyB.make tra
[问答题]阅读材料．根据任务完成要求材料1：《义务教育化学课程标准(2011年版)》关于金属与金属矿物的内容标准：了解金属的物理特征，认识常见金属的主要化学性质
[问答题]下面是某教师关于“金属的腐蚀和防护”的教学片段：通过“课前调查并思考”：校园里哪些设施是由铁制成的被腐蚀的铁与原来有什么不同发生腐蚀的地方通常在哪些部
[问答题]阅读材料。回答相关问题。在义务教育阶段，由于学生的认知水平还比较低，故初中阶段各学科的课程内容大多为概念的理解与学习。一些早期的探究者是根据简单的联想
[单选题]The overall aim of the National English Curriculum includes five components
[单选题]It is found that 71% of Americans regard it as worthwhile toA.spend money o
[单选题]设计化学问题要合理把握难度，让学生“跳一跳才能摘到桃子”。这种教学设计主要遵循的是()。A.最近发展区理论B.尝试错误理论C.图式理论D.格式塔理论
[单选题]In 1776 the United States announced the Declaration of Independence to_____
[单选题]A teacher may encourage students to __________ when they come across new wo
[单选题]When a teacher tells students that the word \"dog\" may imply \"loyalty\",
[单选题]Which of the following activities is most suitable for individual work?A.Pr
[单选题]Which of the following correctly describes the English phoneme/θ/?A.A voice
[单选题]What does the underlined phrase \"the question\" in Paragraph 1 refer to?A.
[单选题]A.正反应速率加大，逆反应速率变小，平衡向正反应方向移动B.正反应速率变小，逆反应速率加大，平衡向逆反应方向移动C.正反应速率和逆反应速率都变小，平衡
[单选题]--Was it not until last week __________he decided to give up smoking? --No,
[单选题]As modem linguistics aims to describe and analyze the language people actua
[单选题]When asking students to arrange the scrambled sentences into a logical para
[单选题]What learning strategy can the following activity help to train? Match the