汽车膜的隔热工作原理是怎样的？

李华俊与其女友定于2008年11月7日举行婚礼，与浓依婚庆公司达成协议，由该公司提供“婚庆一条龙”服务。协议约定，婚礼当天由婚庆公司将6辆奥迪车开至女方家，并提供录像、新娘盘头、化妆等服务项目，李华俊向该公司支付租金1680元。但到婚礼当天，该婚庆公司却掉了链子，在录像时，录像机出现了故障，并且事后将有“拜堂”、“闹房”等重要场景的录像带丢失。据此，李华俊将该婚庆公司告上了法庭，诉称被告的违约行为给夫妻双方造成了极大的精神损害，要求被告赔偿精神损失3000元。下列说法正确的有哪些( )

A．婚庆公司未能依约履行合同，应当承担违约责任

B．婚庆公司的违约行为给原告造成了精神损害，应当承担侵权责任

C．原告可以选择由婚庆公司承担违约责任或者侵权责任

D．原告可以要求婚庆公司同时承担违约责任和侵权责任

患者多梦易醒，醒后不易再睡，心悸，健忘，神疲，面色少华，舌淡苔白，脉细弱。治法为（）

A.补气活血，镇惊安神

B.滋阴降火，养心安神

C.益气镇惊，安神定志

D.补益心脾，养血安神

E.以上均不是

I have been using the Internet since I was five years old, when my dad first sat me down in front of a computer and connected me the World Wide Web.

I’ve always felt like a master of the Internet world. AOL Instant Messaging, MSN, Gmail, Facebook, Myspace -- I’ve got it all under control. I thought there was nothing more to it besides checking my e-mail and wasting my time, until I was introduced to electronic commerce(e-commerce): business on the Internet.

Some online businesses are run from one-room home offices. Others have hundreds of employees (雇员) across the world. Have you ever heard of Amazon.com, Yahoo.com?

My friends often said they got cheap textbooks off Amazon.com, or had a good deal (交易) on Steve Madden shoes that were on sale at SteveMaden.com. Unfortunately for me, I continued my “e-commerceless” Web-surfing, not knowing about all the deals I was missing out on.

That is, of course, until my sister finally sold the idea to me.

“Why are all these packages arriving in the mail for you, Katy?” I asked her one day. Strange envelopes (信封) had been put on our doorstep for weeks now, each one always addressed to my sister; and we all know little sisters should never be getting more mail than their elders!

“Oh, it’s the things I ordered online!” she answered. I watched speechlessly as she opened them. There was no way our parents were letting her spend that much money- online or off!

“How much did all of this coat?”

“Oh, only about $15 in all!” She said excitedly. “Everything on eBay is on sale! It’s a way better than going to the mall.”

I felt as if there had been a store right in my backyard that I had never walked into! That week, I ordered a used Spanish textbook for my summer course online for 10 percent of the publishing price. A few days later, I bought an iPod protector and a book or two via the wonderful eBay.com.

小题1:From the first two paragraph we can conclude that the author        

A．had no experience using computers

B．had no idea of what e-commerce is

C．only used the Internet to check e-mail

D．thought surfing the Internet was a waste of time小题2: The writer didn’t find out about e-commerce until       

A．he stopped web-surfing

B．he visited a store in his backyard

C．his sister explained the packages she got by mail

D．his friends told him about the online deals they made小题3:We can infer from the last paragraph that the author       .

A．never enjoyed shopping that much

B．loves the big store in her backyard

C．feels she is a true master of the Internet

D．has begun to enjoy online shopping小题4:What’s the purpose of the article?

A．To tell the readers how he begins online shopping.

B．To do business on the Internet.

C．To make an online shopping ad.

D．To advise people not to do online shopping

客户信息按办理业务的主体不同，可分为（）

A、单位信息

B、个人信息

C、牡丹卡档案信息

D、单位信息、个人信息、牡丹卡档案信息

驾驶装有防抱死制动系统的汽车时，也要与前方障碍物保持足够的安全距离，湿滑路面还要拉大距离、降低车速。