单选题近年来，国家不断加大西藏太阳能应用的投资，西藏有关部门也更加重视太阳能的开发和利用，太阳能属于“绿色能源”，它的利用不仅是西藏常规能源短缺的一个很好的补充，对西藏的环境保护也有着积极作用。据此回答问题。

单选题范老师很少留意那些考试成绩一般的学生，而是把主要精力用于培养成绩优秀的学生。范老师的做法( )。

单选题学校教育的直接目标是()。

单选题The first time I questioned the conventional wisdom on the nature of a healthy diet, I was in my salad days, almost 40 years ago, and the subject was salt. Researchers were claiming that salt supplementation was unnecessary after strenuous exercise, and this advice was being passed on by health reporters. All I knew was that I had played high school football in suburban Maryland, sweating profusely through double sessions in the swamp like 90-degree days of August. Without salt pills, I couldn't make it through a two-hour practice; I couldn't walk across the parking lot afterward without cramping. While sports nutritionists have since come around to recommend that we should indeed replenish salt when we sweat it out in physical activity, the message that we should avoid salt at all other times remains strong. Salt consumption is said to raise blood pressure, cause hypertension and increase the risk of premature death. This is why the Department of Agriculture's dietary guidelines still consider salt Public Enemy No. 1, coming before fats, sugars and alcohol. It' s why the director of the Centers for Disease Control and Prevention has suggested that reducing salt consumption is as critical to long-term health as quitting cigarettes. And yet, this eat-less-salt argument has been surprisingly controversial—and difficult to defend. Not because the food industry opposes it, but because the actual evidence to support it has always been so weak. When I spent the better part of a year researching the state of the salt science back in 1998— already a quarter century into the eat-less-salt recommendations—journal editors and public health administrators were still remarkably candid in their assessment of how flimsy the evidence was implicating salt as the cause of hypertension. While, back then, the evidence merely failed to demonstrate that salt was harmful, the evidence from studies published over the past two years actually suggests that restricting how much salt we eat can increase our likelihood of dying prematurely. Put simply, the possibility has been raised that if we were to eat as litde salt as the U.S.D.A. and theC.D.C. recommend, we'd be harming rather than helping ourselves. Why have we been told that salt is so deadly? Well, the advice has always sounded reasonable. It has what nutritionists like to call "biological plausibility". Eat more salt and your body retains water to maintain a stable concentration of sodium in your blood. This is why eating salty food tends to make us thirsty: we drink more; we retain water. The result can be a temporary increase in blood pressure, which will persist until our kidneys eliminate both salt and water. The scientific question is whether this temporary phenomenon translates to chronic problems: if we eat too much salt for years, does it raise our blood pressure, cause hypertension, then strokes, and then kill us prematurely? It makes sense, but it's only a hypothesis. The reason scientists do experiments is to find out if hypotheses are true. The N.I.H. has spent enormous sums of money on studies to test the hypothesis, and those studies have singularly failed to make the evidence any more conclusive. With nearly everyone focused on the supposed benefits of salt restriction, little research was done to look at the potential dangers. But four years ago, Italian researchers began publishing the results from a series of clinical trials, all of which reported that, among patients with heart failure, reducing salt consumption increased the risk of death.

单选题下面关于青少年心理健康的标准中说法错误的是（　）。

单选题中学生王某偶然得知同学李某有尿床之疾，便在同学中广而告之，王某的做法侵犯了李某的（　　）

单选题下列选项中，有关电影的表述不正确的一项是()。

单选题祈盼“五谷丰登”“六畜兴旺”是我国古代劳动人民的一个美好愿望，这反映了中国古代农业经济的一个特点是______。 A.我国古代劳动人民有家畜养殖的传统 B.以种植业为主，家畜饲养业为辅 C.用牛力耕田使精耕细作的农业生产模式日益完善 D.采用“男耕女织”式的经营方式

单选题“文章合为时而著，歌诗合为事而作”是由谁提出的?()

单选题______ may be defined as any kind of engaging with the language on the part of the learners, usually under the teacher"s supervision, whose primary objective is to consolidate learning.

单选题“3岁看大，7岁看老”这句话反映了幼儿心理活动()。

单选题某十字路口有四个车道，每个车道用一个指示灯指明同行状态，表中是每个指示灯的控制码与对应的状态。某一时段允许中间2个车道直行对应的控制码如图所示。若某一时段允许车辆左转，但不允许车辆直行和右转，则此时的控制码应该是()。

单选题李老师一个学期对父亲是副乡长的小壮家访了8次，却从未对需要帮助的留守儿童小龙家访过。李老师的做法______。

单选题对幼儿学习品质的理解正确的是( )

单选题课外音乐活动是指课堂音乐教学之外，有别于校外音乐活动、社会音乐活动的学校音乐教育活动。它是针对学生课余时间的、有组织的学校音乐教育活动。课外音乐活动应以( )为主，根据学校和学生的具体情况，因地制宜、因材施教。

单选题师德的教育价值不仅表现为对教师自我专业发展的引导，对( )也有着巨大的教育功能。

单选题教师要不断进行专业发展，体现的职业道德是(　　)。

单选题在校本课程“成语智慧”的学习中有同学请教“投笔从戎”“围魏救赵”“指鹿为马”三个成语分别涉及的历史人物，教师回答正确的是( )。

单选题当今社会人们的节能环保意识日益增强。下列做法不符合节能环保的是______。 A.打印纸双面利用，以降低纸张消耗 B.采用省墨方式进行打印，以减少打印用墨 C.适当加大文档中文本的行距，以降低打印密度 D.没有打印任务时关闭打印机电源，以减少电能浪费

单选题延安文艺座谈会召开于哪一年?()