单选题小明在滑梯上突然被小朋友从后面推了一下，飞快地滑了下来，吓得大哭。作为老师，下列处理方式最为合理的是()。

单选题《幼儿园工作规程》是依据()制定的。

单选题文学院有学生为优秀奖学金获得者，除非各学院有学生为优秀奖学金获得者，否则任何学院都不能从学校领取奖学金，计算机学院可以从学校领取奖学金。由此可以推出()。

单选题游泳时若水温低，易发生腓肠肌痉挛，并产生疼痛，其痛觉可沿哪根神经上传?( )

单选题“贾人(商人)夏则资(购买)皮，冬则资絺(夏天用的细麻布)，旱则资舟，水则资车”。这告诉我们______。 A.经营谋略在经济活动中起决定作用 B.商人利用求异心理进行经营，不值得提倡 C.商人可综合利用影响价格的因素以获取更多利润 D.该经济活动违背了价值规律，是暂时的经济行为

单选题By "some people" I mean me. Why is it that an evening stroll leaves me feeling eaten alive while my companions are left blissfully un-bitten? Studies suggest that about 20 percent of people are "high attractor types" who are especially appealing to the female mosquitoes seeking out blood for the extra protein they need to lay eggs. Of course, not all mosquitoes are the same. But let's consider some of the more general properties that affect your mosquito appeal. Clothing Color It's true, mosquitoes have discerning fashion taste. Or at least, they're more likely to spot you as a target if you stand out from your environment. Dark colors, especially, will attract more of the insect. Body Heat Visual clues allow the mosquito to locate you from relatively far away, but as she approaches, it's your body heat that draws her in. This puts pregnant women, who average about 1.26 degrees Fahrenheit warmer than others, at a particular risk—a tact which has been substantiated by a number of studies. Carbon Dioxide This is another reason pregnant women are at a disadvantage. Mosquitoes can detect carbon dioxide using a special organ called a maxillary palp from as far as 164 feet away. Since everyone emits CO 2 simply by exhaling, it comes down to relative amounts. Unfortunately for mothers-to-be, pregnancy causes women to emit 21 percent more CO 2 . This is also why kids are often safe from bites, when bigger, more CO 2 -emitting adults are around. Alcohol Intake On the flip side, pregnant women are(presumably)avoiding another mosquito attractor: alcohol. Although it' s unclear how mosquitoes go about detecting the presence of ethanol, studies show that drinking even just 12 ounces of beer will significantly increase the attention you receive from the pests. The Properties of Your Skin and Sweat Up to 85 percent of your susceptibility to mosquito bites has nothing to do with what you' re drinking, wearing or how much heat your body emits,—it's just genetic. Specifically, the composition of your skin bacteria—the kind that naturally and healthily exists there—can serve as an attractor. Blood Type Another factor you can't control? Your blood type. And it stands to reason that, if the mosquito is there to suck your blood, she cares what kind she's getting. People with blood type O are more prone to mosquito bites than those with type B, with type A folks bringing up the rear.

单选题5g钠投入m1g过量水中得到ag溶液，把12g镁投入m2g过量盐酸中，得到bg溶液，若m1=m2，a和b的质量关系是______。 A.a＞b B.a＜b C.a=b D.不确定

单选题1954年。国际少年儿童书籍协会在苏黎士设立了以童话大师()的名字命名的国际儿童文学奖，每两年评选一次，这是20世纪儿童文学发展的一座重要的里程碑。

单选题图1所示ATP(甲)是生命活动的直接能源物质，下列叙述正确的是()。

单选题我国不同民族的室内装饰与居住环境各有恃色。下图的民居室内装饰反映的民族特色是

单选题下列不属于19世纪自然科学的三大发现之一的是( )。

单选题不能直接感受到的自然界信息有()。

单选题“二战”结束后，在亚洲和欧洲分别对主要战犯进行了审判，亚洲审判史称“东京审判”，欧洲审判称为()

单选题胡老师工作很勤奋，上课的时候总是尽可能地把重点难点讲完，但是教学效果一直不太理想，这令他感到很费解，胡老师最该反思的是( )。

单选题法律实施的最主要保证是______。 A.社会舆论 B.传统力量 C.人的自觉遵守 D.国家强制力

单选题司马迁自曝其写作《史记》的目的是()。

单选题下列属于幼儿园语言教育目标的是()。

单选题According to The National English Curriculum Standards, the language knowledge students are required to learn consists of phonetics, vocabulary, grammar_______

单选题为了使教师对自己教学各环节有一个准确而客观的认识，可以使用以下哪种教学质量监控方法？( )

单选题人们通常认为“北方人开朗、豪爽，南方人含蓄、细腻。”根据奥尔波特的人格理论，上述人格特质属于()。