下列结论正确的是[ ] ①粒子半径:S2->Cl>S; ②氢化物稳定性:HF>H

题型:选择题

问题:

下列结论正确的是[ ]

①粒子半径:S2->Cl>S;

②氢化物稳定性:HF>HCl>PH3

③离子还原性:S2->Cl>Br>I; 

④单质氧化性:Cl2>S; 

⑤酸性:H2SO4>HClO4; 

⑥碱性强弱:KOH>NaOH>Mg(OH)2

A.①            

B.③⑥           

C.②④⑥           

D.①③④

考点:元素周期律
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小刚的爸爸与小明的爸爸合伙做生意,小刚的爸爸出资10万元,但不参与经营,小明的爸爸负责经营,但不出资。一年后赢利两万元。但是,在如何分配利润的问题上,两人发生了矛盾。多次协商并经他人调解,但仍无结果,最后两人通过法律途径使此事得到解决。

(1)什么是法律?

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(2)材料体现了法律的什么作用?法律还有什么其他作用?

________________________________________________________________________________________________________________________________________________________________________________________

(3)法律面前,青少年应该怎样做?

________________________________________________________________________________________________________________________________________________________________________________________

题型:选择题

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。选项中有两项为多余选项。

Starting high school means changes in your life.Most teenagers look forward to the first day of high school, but still feel a little bit nervous.In order to make your high school life easier, ____小题1:____

Learn all you can about your first day before the first school day.Take part in some activities that are held at the school for new students to know the school better.If parents are invited to these activities, take yours with you.Carefully look over all the materials you receive.____小题2:____

Get the things you will need for class.Buy the things suggested on your teachers’ supply lists and place your materials for each class separately.

____小题3:____ If you find you’re not doing well in a subject, make use of after-school study groups or ask your teacher to help you with your schoolwork.Consider private tutoring to get you through a difficult time.

There’s more extracurricular (课外的) activities in high school than in middle school, such as clubs, music and theatre groups, student government, and sports teams.Make friends and be seen at such school activities.____小题4:___ Ask someone in the school office about opportunities to take part in school activities if you don’t know how.This is a good time to do what you like doing and an opportunity to try new things.Who said school has to be all work and no play?

Since you’re attending more activities in high school than in middle school, ____小题5:____

A.you can follow these tips.

B.Keep up with your high school workload.

C.here are some tips for you to follow.

D.Be sure you know where the school’s buildings are.E.you’ll have to learn to manage your time.

F.Join a club or other organizations to meet people and develop friendships.

G.All work and no play makes Jack a dull boy.

题型:选择题

A series of stimulus policies and supportive measures taken by the government _____ to promote change in the economic environment in this area.

A.are expecting

B.are expected

C.is expecting

D.is expected

题型:选择题

桃红(粉红)葡萄酒是()发酵工艺生产出来的。

A.皮+籽全发酵

B.皮+籽半发酵

C.无皮+无籽全发酵

D.都不是

题型:选择题

防火墙

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