在教小学数学“按比例分配”时，教师在讲新课前向全班提问，把12棵树分给两个组去栽。每个小组分几棵?" 学生齐声回答:“6棵!”教师问:“有没有不同意见呢?”发现孙同学眉头微造，就提醒说:“大家要认真思考，有同学可能把你们的答案推翻了哦。”学生们于是开始思考，很快包括孙同学在内的几个学生举手，孙同学起来回答说:“老师，每组分6棵不一定对。“教师紧接着问:“为什么?”孙同学继续说:“因为题中没有说怎么分，如果平均分，每组可以分6棵; 如果不平均分，就有多种分法。”
教师当即说:“说得好。过去我们学的都是是平均分，今天我们要学的不是平均分。”然后在黑板上写出了“按比例分配”。关于该教师的教学，以下说法正确的有( )。
根据题意，该教师的教学采用了启发式教学；借鉴了奥苏贝尔的有意义学习理论；其课程导入属于杜威五步教学法中的问题阶段。
我国保护少年儿童权益的专项法律是《中华人民共和国未成年人保护法》。（ ）
根据以下材料，回答题
If you don′t think a phone is the rightgift for a lover, the smart choice this year is a smart phone.
For people who don′t read instructions
The easiest-to-use phone is the iPhone. It′sthat has pushed it to the No.1 selling position, surpassing the Motorola Razr.The iPhone′s touch screen is easy to operate and it′s also easy to customize (用户化). The iPhone can run allsorts of applications such as those help you to lose weight, identify a song onthe radio, find a restaurant or do many other things.
For the futurist
The T-Mobile G1 is very popular as it is thefirst phone to offer a Google browser, meaning that you′re getting the real webon your phone, but it′s the phone′s potential that qualifies it for the futurist.The exciting applications are interesting, but they don′t always work smoothly.Sometimes it is hard to use the applications it comes with. The system shouldimprove as it becomes more popular, so it holds great promise. With fewrestrictions on the design of applications for the phone,
the G1 could be the first phone toincorporate (整合) some of the coolest.
For the road warrior
The new BlackBerry Storm is something likethe equivalent (等同物) of a mullet--a business up front, party in the back. It stillincorporates the serious mail and organization features that have endeared (使受钟爱) these phones to business people. The 3.25-inch is bright anddetailed and it′s a decent size for watching videos on the go.
For the Luddite (反对技术进步的人)
For those who can′t handle buttons and newfeatures, there is the Samsung Jitterbug Dial. Some people are Luddites whojust want a few large buttons to make calls. That′s it, just calls. That makesit even easier to use an iPhone.
What would be the best title forthe passage (no more than 6 words)
________________________________________________________________________
MP3（ ）。
简述学生的义务。
依据《普通高中英语课程标准》，语言有丰富的文化内涵。教师应根据学生的年龄特点和__________ ，逐步扩展文化知识的内容和范围。
计算机软件是指（ ）。
下面哪一项不属于维护交易安全原则的内容？（ ）
围绕《建国以来的重大科技成就》一课，做一个教案。
请围绕“城乡发展一体化”写一篇小论文，题目自拟，角度不限，要求：结构完善、条理清晰、有说服力。
在国际关系中，第三世界国家历来是中国团结合作的对象，因为 ①第三世界国家是国际社会一支重要的政治力量 ②团结第三世界国家符合中国的国家利益 ③合作是第三世界国家共同发展的必由之路 ④第三世界国家在南北关系中处于主导地位（ ）
