热点试题

[ 数学 ] 一件商品，先上涨5%，然后又降价5%，这件商品现在的价格（）原来的价．A．高于B．低于C

一件商品，先上涨5%，然后又降价5%，这件商品现在的价格（　　）原来的价．

A．高于

B．低于

C．等于

2016-05-17 |

[ 数学 ] 计算下列各题：（1）23﹣17﹣（﹣7）+（﹣16）（2）（3）（4）（5）3x2+2

计算下列各题：
（1）23﹣17﹣（﹣7）+（﹣16）
（2）

（3）

（4）

（5）3x²+2xy﹣4y²﹣3xy+4y²﹣3x²．

2016-05-17 |

[ 数学 ] （本小题满分13分）（1）已知A={a+2，（a+1）2，a2+3a+3}且1∈A，求实数

（本小题满分13分）（1）已知A={a+2，（a+1）²，a²+3a+3}且1∈A，求实数a的值；（2）已知M={2，a，b}，N={2a，2，b²}且M=N，求a，b的值.

2016-05-21 |

[ 数学 ] 已知x，y满足约束条件3x+5y≥152x+y≤4x≥0，则目标函数z=x+3y的最大值是

已知x，y满足约束条件

3x+5y≥15

2x+y≤4

x≥0

，则目标函数z=x+3y的最大值是99．

2016-05-24 |

[ 数学 ] 设向量与向量的夹角为，且，则

设向量

与向量

的夹角为

，且

，则

2016-05-25 |

[ 语文 ] 背诵大量的优美诗词、文章，将会陶冶你的性情，增强你的人格魅力。考考你会背多少诗文，按课文

　　背诵大量的优美诗词、文章，将会陶冶你的性情，增强你的人格魅力。考考你会背多少诗文，按课文填空。
（1）东风不与周郎便，______________________。（杜牧《赤壁》）
（2）______________________，化作春泥更护花。（龚自珍《已亥杂诗》）
（3）萧鼓追随春社近，________________________。（陆游《游山西村》）
（4）《过零丁洋》中有两句震撼人心的千古名言是：_________________________________， ___________________________。
（5）《观刈麦》中写农民劳动艰辛的对偶句是：_____________________________，__________________________。　
（6）《记承天寺夜游》中有精彩的月色描写，这两句是： _____ ，
，盖竹柏影也。

2016-05-26 |

[ 语文 ] 下列都有通假字的一组是 [ ] A．契阔谈 还部白府君幸可广问讯 B．咥其笑矣

下列都有通假字的一组是[ ]

A．契阔谈　还部白府君　　　幸可广问讯
B．咥其笑矣　偭规矩而改错　　何方圜之能周兮
C．士之耽兮　謇朝谇而夕替　　忳郁邑余侘傺
D．于嗟鸠兮　进不入以离尤兮　终老不复取

2016-05-27 |

[ 英语 ] 选词填空 take of working instructi

选词填空

take of working instructions felt It

     My father bought a new cell phone for me last week. It can   1   photos and short videos. I like it very
much. One day, I wanted to use it to take a photo   2   my father. But it was not   3   . I didn't know why.
My father suggested that I should read the   4    first. And I did as he said. 5 explains how the phone
works. I took a lot of beautiful photos and I   6 so happy.

2016-05-27 |

[ 英语 ] 阅读理解。 When you think about running away,

阅读理解。

     When you think about running away, you probably imagine that there will be no more rules, no
parentto tell you what to do, no more fights. Sounds great and exciting, right? In fact,    1 but fun.
Kids who run away face new problems like not having any money, food to eat, a safe place to, sleep,
oranyone to take care of them.
     People with no home and no money become ready to do anything just to meet their everyday needs.
Because of this,     2 that would be terrible even for adults. Run-away kids join in dangerous crimes
(犯罪) much more often than kids who live at home.
     Kids who live on the streets often have to steal(偷) for a living. Many take drugs to get through
the day because they become so sad and feel that    3 . Some are forced(被迫) to do things they
wouldn'tnormally do to make money. The number of kids with HIV or AIDS and other diseases is
higher on streets, too, because     4 . This problem is attracting more and more attention.

A. running away is nothing
B. they often find them in risky situations
C. it may be natural
D. these kids are more easily to get affected(感染)
E. no one cares about themF. take good care of

2016-05-28 |

[ 英语 ] 句型转换。 1. He never watches programmes about an

句型转换。

1. He never watches programmes about animals. (就画线部分提问)
    ________ ________ does he watch programmes about animals?
2. I saw and heard something in the dark room. (改为否定句)
I ________ see ________ hear anything in the dark room.
3. The girl looks good in red and purple. (保持句意基本不变)
    Red and purple ________ good ________ the girl.
4. I can't decide where I will spend my coming holiday. (保持句意基本不变)
    I can't decide ________ ________ spend my coming holiday.
5. The famous director chose Hepburn to play the lead role of a young princess. (改为被动语态)
    Hepburn ________ ________ to play the lead role of a young princess by the famous director.

2016-05-28 |