在各类烃中,热稳定性最差,受热最易分解的是()。A、烷烃 B、烯烃 C、芳烃 D、环

题型:单项选择题

问题:

在各类烃中,热稳定性最差,受热最易分解的是()。

A、烷烃

B、烯烃

C、芳烃

D、环烷烃

考点:煤间接液化操作工煤间接液化合成操作工煤间接液化合成操作工题库
题型:单项选择题

Tips For Choosing A Career

Choosing a career is one of the most important decisions you will ever make. While selecting a career can be a difficult process, the following tips can make this process easier for you.

Careful reading about potential careers is vital. ______小题1:_______ It’s important to collect information such as career descriptions, career outlooks, employment statistics, educational requirements, and potential earnings.

______小题2:_______ Do this frequently since these lists keep changing. A “hot job” today may not be “hot ” next year or the year after next year. When evaluating these lists, keep in mind your interests, skills and job satisfaction requirements.

Find a mentor(指导者). Many colleges and employers have a formal mentoring program. ____小题3:_______ It is a great way to learn about a career, and a mentor can provide valuable networking opportunities.

Interviewing people in the field is an excellent way to learn about the various aspects of a career._____ 小题4:_______ Informational interviews often change a person’s perspective about an occupation. You can find interview candidates by asking friends, teachers and neighbors. You can also contact relevant professional associations and societies and visit appreciate social and professional networking sites online.

The skills required for a career are an essential factor for an individual’s potential for success in that career. Write a list of the skills needed for a particular field. Place a check next to each skill you possess._____ 小题5:______

A. Look for lists of “hot jobs” on the Internet and in magazines.

B. The more checks you make, the more likely this field is right for you.

C. You will discover detailed information about careers that you were not aware of.

D. Potential careers are the jobs which you will have in the future.E.  At last, please count the number of checks you have.

F.  Doing this may also provide good social communication opportunities.

G.  Also, formal mentoring organizations are available that match mentors with individuals.

题型:单项选择题

系统论又可以称为()

A.普通系统论

B.一般系统论

C.标准系统论

D.抽象系统论

E.复杂系统论

题型:单项选择题

井下行驶车辆之间的距离应保持在()以上。

A、3

B、10

C、30

题型:单项选择题

受热面容易受飞灰磨损的部位通常有哪些?

题型:单项选择题

牙龈纤维中最多的一组是()。

A.龈牙组

B.牙槽嵴组

C.环行组

D.牙周膜组

E.越隔组

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