禾本科植物的叶多为等面叶。

[单选题]It seems obvious that you don"t give away your product for free but this is exactly what indie rock group The Crimea did earlier this year. The band"s reasoning goes like this: more people will download the free album than would pay for it. Therefore more people will heat. The Crimea"s music. These people will then pay money for concerts by the band and perhaps buy a T-shirt or other merchandise. If the band play regular concerts to crowds of 200 or 300 people they can make more money than they would from sales of a CD. There will always be some people who want something they can hold in their hands so they will release the CD into the shops too—but making money through sales of their music isn"t the top priority. The story illustrates the creative thinking going on in the music business in response to dramatic changes over the last few years in the way that people buy music. Sales of music digitally—to computer, phones and MP3 players rose to $2 billion in 2006—an increase of almost 100 percent on the previous year—yet overall record company sales are down. People are simply not buying CDs in record shops in anything like the numbers they used to. This trend looks set to continue, so the big question for the music industry is whether they can successfully manage the move to being primarily a digital industry without profits falling to unacceptable levels. There are both positive and negative signs. On the plus side, more and more people are buying music on mobile phones, which allows people to make impulse purchases—they can buy a song as soon as they hear it. Research by the UK mobile operator 3 suggested that 75 percent of 16 to 24-year-olds wanted to buy a track they liked as soon as they heard it. With so much competition for people"s disposable income, a product that you can sell immediately is a big advantage. The bad news for record companies, however, is the amount of music that is downloaded illegally. Piracy—usually in the form of cheaply copied CD—has long been an issue for the music business but the Internet means music can be copied and distributed freely through file-sharing sites on a large scale than ever before. It is this situation that leads bands to start giving away their music for free and promises to make the next few years a very interesting time in the music business.The Crimea also released CDs for sale in shops because （）.

[问答题]根据资料（1），计算2015年12月31日按照权益法核算的长期股权投资的账面价值，并编制相关会计分录。

[单选题]在装备安全带拉紧器的车辆发生碰撞时，（）在引爆气囊的同时，也引爆安全带拉紧机构，能够更换有效地保护驾乘人员的安全。

[单选题]心脏的纤维骨架不包括的结构是（）

[多选题]一天，开完班会课，刚走出教室的班主任听到身后传来：“老师，等等”，转过身看到是马永强同学，“老师，我想当体育委员，能让我当体育委员吗？班主任能管住学生的！”班主任想都没想，直接告诉他不行。因为在班主任的记忆中，他打人确实最厉害，全班学生几乎都害怕他，况且学习成绩又不好，自制能力差，身上的缺点那一条都不符合当班干部。就在班主任要离开的刹那间，马永强拉住班主任的衣角，急切的问：“老师，你能告诉我，为什么，不行？”班主任正想告诉刚想到的原因，张嘴说话的瞬间，看到了马永强那充满渴求的目光，这样一个看了各方面表现都不好的学生，直接否定他身上的一点积极性，合适吗？人都有可塑性，为何不给他机会呢？想到这，马永强对他说：“周一班会课时咱班改选班委会，如果你想当，自己努力，竞争上岗吧！”周一的班会课上各个职位竞争的很激烈，轮到体育委员时，马永强允许马永强发表自己要当体育委员的演说词，结果是不出所料，全班同学没有一个同学投他的票，他垂头丧气地坐在自己的座位上，脸憋得通红，此时，下课铃声响了。班主任让马永强到办公室，问他：“为什么同学们不选你呀？”“也许是我不遵守纪律或者是大家觉得我各方面都不行？”他说。班主任知道目的已达到，就是让马永强意识到自己的问题。“这样吧！反正体育委员也没选出来，还空着，如果你连续两周不违反纪律，语文数学作业先得五次优，老师可以考虑给你个机会，让全班同学相信你，都投你一票！“谢谢老师，我肯定能做到”，马永强满脸喜悦。接下来的两周里，班主任让和马永强要好的两名同学时刻提醒他，让全班同学监督，并不失时机地让以前的体育委员告诉马永强当体育委员的职责。通过两周的观察，马永强果然有了很大进步，完全做到了班主任对他的要求。班主任兑现了承诺，让马永强实现了自己的第一个目标。后来根据马永强的发展，班主任制定了不同的要求，让他逐步完成。经过一个学期的观察，改掉了原有的那些坏毛病，最终和其他孩子一样，成为了一个各方面均衡发展学生。 班主任对马永强的做法说明什么（）

[多选题]我国刑法明确规定了以危险方法危害公共安全罪，下列不属于以危险方法危害公共安全的行为是（）。

[单选题]直流自励电机按主磁极与电枢绕组接线方式的不同可以分为（）。

[多选题]政府对非营利组织的作用主要表现在（）。

[多选题]Diameter信令网的寻址方式有（）

[判断题]镜架使用一个月，表面出现腐蚀点或变色，说明其镀层的乃腐蚀性能不良。

[判断题]禾本科植物的叶多为等面叶。

[判断题]禾本科植物的叶多为等面叶。

[单选题]禾本科植物茎中央为（）。

[单选题]禾本科植物茎中央为（）

[问答题]禾本科植物茎为什么可以增粗、长高？

[问答题]禾本科植物茎的构造特点是什么？

[问答题]禾本科植物茎的构造特点是什么？

[问答题]简述禾本科植物的分孽。

[单选题]禾本科植物的气孔器由（）组成。

[问答题]何谓禾本科植物的分孽？