热点试题

[ 数学 ] 某学校的平面示意图如图所示,如果实验楼所在位置的坐标为(4,-2),教学楼所在位置的坐标为

某学校的平面示意图如图所示,如果实验楼所在位置的坐标为(4,-2),教学楼所在位置的坐标为(1,3),那么语音室所在位置的坐标为______.

2016-05-16 | 0

[ 数学 ] 某景点门票为6元,售票员误将一游客购票的10元当成了50元,找给游客44元,这个景点损失了

某景点门票为6元,售票员误将一游客购票的10元当成了50元,找给游客44元,这个景点损失了______元.

2016-05-17 | 0

[ 数学 ] 准备三张纸片,两张纸片上各画一个三角形,另一张纸片画一个正方形(如图所示).如果将这三张纸

准备三张纸片,两张纸片上各画一个三角形,另一张纸片画一个正方形(如图所示).如果将这三张纸片放在一个盒子里搅匀.
(1)随机地从盒子里抽取一张纸片,纸片上画有一个三角形的机会是多少?
(2)甲、乙两人制定了这样的游戏规则:随机地抽取两张纸片,可能拼成一个菱形(取出的是两张画三角形的纸片),也可能拼成一个房子(取出的是一张画三角形、一张画正方形的纸片).若拼成一个菱形,则甲赢;若拼成一个房子,则乙赢.你认为这个游戏公平吗?请说明理由.


2016-05-18 | 0

[ 数学 ] 了解本校学生对华东师范大学数学教材的态度,四位同学做了如下调查:小明向七年级的六个班级的所

了解本校学生对华东师范大学数学教材的态度,四位同学做了如下调查:小明向七年级的六个班级的所有同学做了调查;小华向八年级六个班的全体同学做了调查;小丽向九年级六个班的全体学生做了调查;小亮向七,八,九年级各抽取了两个班的同学做了调查,你认为谁的调查较科学(  )
A.小明B.小华C.小丽D.小亮

2016-05-19 | 0

[ 数学 ] 在数学质量检测中,第一小组平均成绩是89分,第二小组平均成绩是92分,表明第二小组每人的成

在数学质量检测中,第一小组平均成绩是89分,第二小组平均成绩是92分,表明第二小组每人的成绩都比第一小组好.______.

2016-05-21 | 0

[ 数学 ] 异面直线与上的单位向量分别为,, 且,则两异面直线与所成角的大小为________.

异面直线上的单位向量分别为, 且,
则两异面直线所成角的大小为________.

2016-05-25 | 0

[ 数学 ] 点P是底边长为2,高为2的正三棱柱表面上的动点,MN是该棱柱内切球的一条直径,则·的取值范

点P是底边长为2,高为2的正三棱柱表面上的动点,MN是该棱柱内切球的一条直径,则·的取值范围是(  )
A.[0,2] B.[0,3]
C.[0,4] D.[-2,2]

2016-05-25 | 0

[ 英语 ] A.offersB.influencesC.uncoveredD.exactly E. b


A.offersB.influencesC.uncoveredD.exactly E. big
F. found      G. campaigns      H. involved        J. properly       I. notion
What’s in a name? Letters offer clues to one’s future decisions, apparently. Previous studies have suggested that maybe a person’s monogram __1__ his life choices — where he works, whom he marries or where he lives — because of “implied self-esteem (自负),” or the temptation of positive self-associations. For instance, a person named Fred might be attracted to the __2__ of living in Fresno, working for Forever 21 or driving a Ford F-150.
Now a new study by professor Uri takes another look at the so-called name-letter effect and __3__ other explanations for the phenomenon. He analyzed records of political donations in the U.S. during the 2004 campaign — which included donors’ names and employers — and found that the name of a person’s workplace more closely related to the first three letters of a person’s name than with just the first letter. But he suggests that the reason for the association isn’t implied self-esteem, but perhaps something __4__ the opposite.
Duyck, one of the researchers whose previous work __5__ the name-letter effect, isn’t so quick to abandon the implied self-esteem theory. He pointed out that the sample group Uri studied may have biased the results: Uri analyzed the name-letter effect in a sample of people who donated money to political __6__. Still, Duyck notes that Uri’s theories are credible, and that even while some people may __7__ the same name of companies, employees may be tending to those companies because they start with the same letter as their names. In the end, whatever the explanation for the name-letter effect, no one really disputes that self-esteem is __8__ on some level. But the true importance of the effect is up for debate. “I can’t imagine people don’t like their own letter more than other letters,” says Uri, “but the differences it makes in really __9__ decisions are probably slim.”

2016-05-27 | 0

[ 英语 ] He usually      during the day and gets up   

He usually      during the day and gets up       night.
A.relaxes, toB.sleeps, in
C.relaxes, inD.sleeps, at

2016-05-28 | 0

[ 物理 ] 物块A静置于固定的斜面上,A所受的重力为G、支持力为N,摩擦力为f.下列说法正确的是( )

物块A静置于固定的斜面上,A所受的重力为G、支持力为N,摩擦力为f.下列说法正确的是(  )
A.G与N的合力方向水平向左
B.物块对斜面的作用力竖直向下
C.减小斜面倾斜角,f保持不变
D.N和f是一对相互作用力

2016-05-29 | 0