单选题教师所具有的特定的学科知识是指( )

单选题一般来说，造成人的基础心率更低的运动是______。

单选题下列选项中，不能体现学生互相评价的是______。

单选题用Ghost原件给计算机重装操作系统，其作用是______。 A.分区对分区拷贝 B.备份分区为镜像文件 C.用镜像文件恢复分区 D.用镜像文件恢复硬盘

单选题针对 “海因茨偷药’’这一两难故事，小刚认为海因茨该不该偷药取决于他是否爱自己的妻子，根据柯尔伯格的道德发展阶段理论，小刚的道德水平应处于哪个道德定向阶段?( )

单选题1851年，正当伦敦世博会召开，宣布资本主义工业革命正以雷霆万钧之力重塑欧洲乃至全球经济和社会形态时，已经有人在解剖它的病灶，预备提前宣判它的死刑了。该事件是指______

单选题通常情况下“企业管牛，政府管熊”。也就是说，一般而言，市场环境好的时候，企业自己努力赚钱，市场环境不好时，政府要出手救市。下列属于“政府管熊”的措施有( ) ①降低税率 ②降低利息 ③减少国债发行 ④提高贷款利率A．①③B．①②C．③④D．②③

单选题蹲踞式跳远关键的技术环节是______。

单选题计算机的中央处理器只能直接调用______的信息。 A.内存 B.硬盘 C.光盘 D.软盘

单选题若函数y=e(a-1)x+4x(x∈R)有大于零的极值点，则实数a的范围是______．A．a＞-3B．a＜-3C．D．

单选题“学而不思则罔，思而不学则殆”的思想出自( )。A．《学记》B．《大学》C．《论语》D．《师说》

单选题据《论语》所载，孔子教人，“不愤不启，不悱不发”，后《学记》又提出“道而弗牵，强而弗抑，开而弗达”的教学要求，这都是强调了教育的( )。

单选题下列不能体现美术课程价值的一项是______。

单选题下面是史铁生《我与地坛》中的一段文字，文后四项分析不恰当的一项是（）。 摇着轮椅在园中慢慢走，又是雾罩的清晨，又是骄阳高悬的白昼，我只想着一件事：母亲已经不在了。在老柏树旁停下，在草地上在颓墙边停下，又是处处虫鸣的午后，又是鸟儿归巢的傍晚，我心里只默念着一句话：可是母亲已经不在了。把椅背放倒，躺下，似睡非睡挨到日没，坐起来，心神恍惚，呆呆地直坐到古祭坛上落满黑暗然后再渐渐浮起月光，心里才有点明白，母亲不能再来这园中找我了。

单选题下列关于生物工程相关知识的叙述，不正确的是( )A．发酵工程并不都是在无氧条件下进行的B．植物体细胞杂交，能克服远缘杂交不亲和的障碍C．单克隆抗体制备过程中，参与融合的B淋巴细胞只能产生单一的抗体D．若要生产转基因抗病水稻，先将目的基因导入到大肠杆菌中，再转入水稻细胞中

单选题(五) The common cold is the world's most widespread illness, which is plagues that flesh receives. The most widespread mistake of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes. During the First World War soldiers who spent long periods in the trenches, cold and wet, showed no increased tendency to catch colds. In the Second World War prisoners at the notorious Auschwitz concentration camp, naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit in England, volunteers took , part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose. If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? Despite the most pains—taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on. No one has yet found a cure for the cold. There are drugs and pain suppressors such as aspirin, but all they do is to relieve the symptoms.

单选题We must __________ using plastic bags in order to protect our earth.

单选题以下说法不体现教育的相对独立性的是______。

单选题将生长状态一致的同一品种玉米植株分为甲、乙两组，甲组培养在适宜的光照条件下，其叶维管束鞘细胞中有淀粉积累；乙组培养在光线较弱的条件下，其叶维管束鞘细胞中没有检测到淀粉。乙组未检测到淀粉的原因是( )A．叶片不进行光合作用，只进行呼吸作用B．叶片光合作用强度低，没有淀粉的积累C．维管束鞘细胞没有与淀粉合成相关的酶D．维管束鞘细胞不舍叶绿体，不能进行光合作用

单选题|-0.5|的倒数是______．A．0.5B．-2C．2D．