下列关于有机物的说法不正确的是 A．石油化工、煤化工分别是乙烯、苯的主要来源 B．

一个数的千位上是3，个位上是0，十位和十分位上都是4，百位和百分位上都是8，这个数是   [ ]

 A.3804.48   

 B.3048.48   

 C.3000.48   

 D.3840.48

不宜与芫花同用的药物是（）

A.甘草

B.大枣

C.乌头

D.玄参

E.细辛

Some people think that success is only for those with talent or those who grow up in the right family，and others believe that success mostly comes down to luck.I'm not going to say luck，talent，and circumstances don't come into play because they do.Some people are born into the right family while others are born with great intelligence，and that's just the reality of how life is.

However，to succeed in life，one first needs to set a goal and then gradually make it more practical.And，in addition to that，in order to get really good at something，one needs to spend at least 10,000 hours studying and practising.To become great at certain things，it'll require even more time，time that most people won't put in.

However，to succeed in life，one first needs to set a goal and then gradually make it more practical.And，in addition to that，in order to get really good at something，one needs to spend at least 10,000 hours studying and practising.To become great at certain things，it'll require even more time，time that most people won't put in.

This is a big reason why many successful people advise you to do something you love. If you don't enjoy what you do，it is going to feel like unbearable pain and will likely make you quit well before you ever become good at it.

This is a big reason why many successful people advise you to do something you love. If you don't enjoy what you do，it is going to feel like unbearable pain and will likely make you quit well before you ever become good at it.

When you see people exhibiting some great skills or having achieved great success，you know that they have put in a huge part of their life to get there at a huge cost.It's sometimes easy to think they got lucky or they were born with some rare talent，but thinking that way does you no good，and there's a huge chance that you're wrong anyway.

Whatever you do，if you want to become great at it, you need to work day in and day out，almost to the point of addiction，and over a long period of time.If you're not willing to put in the time and work，don't expect to receive any rewards.Consistent, hard work won't guarantee you the level of success you may want, but it will guarantee that you will become really good at whatever it is you put all that work into.

小题1:Paragraph 1 mainly talks about ________.

A．the reasons for success

B．the meaning of success

C．the standards of success

D．the importance of success小题2:Successful people suggest doing what one loves because ________.

A．work makes one feel pain

B．one tends to enjoy his work

C．one gives up his work easily

D．it takes a lot of time to succeed小题3:What can we infer from Paragraph 4?

A．Successful people like to show their great skills.

B．People sometimes succeed without luck or talent.

C．People need to achieve success at the cost of life.

D．It helps to think that luck or talent leads to success.小题4:What is the main theme of the passage?

A．Having a goal is vital to success.

B．Being good is different from being great.

C．One cannot succeed without time and practice.

D．Luck，talent and family help to achieve success.

软件原型化开发方法有其基本步骤，下列（）是实施原型化的最基本步骤。

A、获得基本需求

B、开发工作模型

C、严格细致说明

C、模型验证

为保证机动车安全技术检验设备的量值准确可靠，应当按照计量法的有关规定，定期对其进行检定或校准。（）