如何请求人民解放军支援黄河工程抢险?

题型:问答题 简答题

问题:

如何请求人民解放军支援黄河工程抢险?

考点:黄河知识竞赛黄河知识竞赛题库
题型:问答题 简答题
(1)计算:(-
1
2
)-1-3tan30°+(1-
2
)0+
12

(2)先化简,再求值:(
x2
x-3
-
9
x-3
)•
1
x2+3x
其中x=
1
3
题型:问答题 简答题

如图甲所示,理想变压器原、副线圈的匝数比 n1:n2=3:1,L1、L2为两相同灯泡,R、L、D和C分别为定值电阻、理想线圈、理想二极管和电容器,其中C=10。当原线圈两端接如图乙所示的正弦交流电压时,下列说法中正确的是(   )

A.灯泡L1一定比L2

B.副线圈两端的电压有效值为V

C.电容器C放电周期为s

D.电容器C所带电荷量为C

题型:问答题 简答题

When I was 13, my bedroom walls were covered with posters of the Monkees and Beatles. I wrote fan letters and daydreamed about meeting the objects of my affections. I begged my  parents to attend every rock concert and watch every TV show featuring my favorite celebrities; my friends and I discussed for hours all the things we would say and do when we met our favourite movie stars and pop singers. I drove my mother crazy ! But after a few years, my obsession stars faded as I matured and gained the confidence to socialize with “real” boys.

In the 35 years since I was a teenager, celebrity worship (崇拜) has increased among teens due to the explosion of television celebrity gossip shows, and instant access to celebrity news on the Internet. It’s no wonder that many teens are obsessed with stars when news programs are often filled with entertainment stories and the lives of celebrities.

Celebrity worship syndrome (综合征) is now considered a personality disorder. While it is normal for teenagers to follow the lives of their favorite stars, parents should try to monitor everything their child finds interesting. Parents should take action if they suspect a teen is too obsessed with celebrities and showing little interest in school or withdrawing from the family.  When teens talk a lot about celebrities and view them as just means of entertainment, this is considered normal celebrity worship. However, when a teenager is obsessed with a star and  often expresses a desire to have a close personal relationship with a celebrity or feels they have a special connection to a star, this may be the time for concern. Recent studies have shown that teens who develop an unhealthy obsession with celebrities often suffer from low self confidence and depression. Teens who are overly obsessed with stars often have damaged relationships with their parents.

小题1:The first paragraph is intended to tell us________.

A.parents needn’t worry about celebrity worship

B.celebrity worship can cause serious problems

C.it’s normal for a teen to have celebrity worship

D.celebrity worship only exists among teens小题2:We can learn from the second paragraph that________.

A.the media greatly contributes to celebrity worship today

B.the author is surprised at celebrity worship

C.teens today are not so obsessed with celebrities

D.celebrities expose their lives too much小题3:Parents should become concerned when their children________.

A.talk a lot about celebrities with others

B.put up celebrity posters in their bedrooms

C.ask to go to their favourite star’s concert

D.desire a close personal relationship with their favorite star小题4:The last paragraph implies that________.

A.parents should not care too much about a child’s celebrity worship

B.celebrity worship syndrome can be a serious problem if left overlooked

C.children can normally get out of celebrity worship when they are older

D.children with celebrity worship usually have high opinion of themselves小题5:What is most likely to be talked about in the paragraph following the passage?

A.The harm of celebrity worship syndrome.

B.More signs of celebrity worship syndrome.

C.What to do with children’s celebrity worship syndrome.

D.Who will suffer most from celebrity worship syndrome.

题型:问答题 简答题

教育心理学初创时期的时间大致为( )

A.19世纪20年代以前

B.19世纪80年代

C.20世纪20年代以前

D.20世纪80年代

题型:问答题 简答题

加氢装置操作是在()状态,稍微有些()和()的泄露,都将可能造成重大的安全事故。因此在开工初期将装置的气密工作做好是实现安全无事故运行的关键步骤。

更多题库