热点试题

[ 数学 ] 据统计,截止10月31日上海世博会累计入园人数为7308万.这个数字用科学记数法表示为 [

据统计,截止10月31日上海世博会累计入园人数为7308万.这个数字用科学记数法表示为[    ]
A.7×107
B.7.308×106
C.7.308×107
D.7308×104

2016-05-17 | 0

[ 数学 ] 抛物线y=(x-1)2+3的对称轴是 [     ] A.直线x=1B.直线x=3C.直线

抛物线y=(x-1)2+3的对称轴是[    ]
A.直线x=1
B.直线x=3
C.直线x=-1
D.直线x=-3

2016-05-19 | 0

[ 数学 ] 二次函数y=nx2+2x+n-4n2的图象经过原点,则其函数关系式是______.

二次函数y=nx2+2x+n-4n2的图象经过原点,则其函数关系式是______.

2016-05-19 | 0

[ 数学 ] “”是“”的(    )条件A.充分不必要B.必要不充分C.充要D.既不充分也不必要

”是“”的(    )条件
A.充分不必要B.必要不充分C.充要D.既不充分也不必要

2016-05-22 | 0

[ 数学 ] 函数y=2cos2(x+π3)-1的最小正周期是______.

函数y=2cos2(x+
π
3
)-1
的最小正周期是______.

2016-05-23 | 0

[ 数学 ] 若关于x的不等式-x2+2x>mx的解集为{x|0<x<2},则实数m=(    )。

若关于x的不等式-x2+2x>mx的解集为{x|0<x<2},则实数m=(    )。

2016-05-24 | 0

[ 数学 ] 已知平面向量a=(x1,y1),b=(x2,y2),若|a|=2,|b|=3,a·b=-6

已知平面向量a=(x1y1),b=(x2y2),若|a|=2,|b|=3,a·b=-6,则的值为(  )
A.B.-C.D.-

2016-05-25 | 0

[ 英语 ] 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并将答案写在Ⅱ卷上。选项中有两项

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并将答案写在Ⅱ卷上。选项中有两项为多余选项。
Doctors say anger can be an extremely damaging emotion, unless you learn how to deal with it. They warn that anger can lead to heart disease, stomach problems, headaches, emotional problems and possibly cancer.
___小题1:___ Some people express anger openly in a calm reasonable way. Others burst with anger, and scream and yell. But other people keep their anger inside. They can not or will not express it. This is called repressing anger.
For years many doctors thought that repressing anger was more dangerous to a person’s health than expressing it. They said that when a person is angry, the brain releases the same hormones (荷尔蒙). They speed the heart rate, raise blood pressure, or sugar into the blood, etc. ___小题2:___
Some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger violently may be more likely to develop heart disease, and they believe that those who keep anger inside may face a greater danger of high blood pressure.
___小题3:___ They say the first step is to admit that you are angry and to recognize the real cause of the anger, then decide if the cause is serious enough to get angry about. If it is, they say, “___小题4:___ Wait until your anger has cooled down and you are able to express yourself calmly and reasonably.”
Doctors say that a good way to deal with anger is to find humor in the situation that has made you angry. ___小题5:___
A.In general the person feels excited and ready to act
B.They said that laughter is much healthier than anger.
C.Expressing anger violently is more harmful than repressing it
D.Anger may cause you a cancer.
E. Do not express your anger while angry.
F. Anger is a normal emotion that we all feel from time to time.
G. Doctors say the solution is learning how to deal with anger.

2016-05-27 | 0

[ 英语 ] 阅读理解,将正确答案的序号填在括号里。        The children are o

阅读理解,将正确答案的序号填在括号里。
       The children are on a field trip. They are very happy. Tom is taking pictures for the birds. Betty is catching
butterflies. The teacher is doing an experiment with her students. Some girls are picking up apples.
1. Where are the children? [    ]
A. They are at school.               
B. They are at home.              
C. They are on a field trip.
2. What is Tom doing?[    ]
A. He is taking pictures.             
B. He is playing chess.             
C. He is doing an experiment.
3. Who is doing an experiment?[    ]
A. Betty.                                                             
B. The teacher with her students.             
C. Some girls.
4. What is Betty doing?[    ]
A. She's picking up apples.             
B. She's catching butterflies.               
C. She's very happy.

2016-05-28 | 0

[ 英语 ] —How______do you attend the evening classes—_

—How______do you attend the evening classes?
—______,three times per week.
A.long;On the wholeB.often;On average
C.soon;Generally speakingD.much;In all

2016-05-28 | 0