真核生物成熟的mRNA5′一端具有() A.7mAppp B.7mGppp C.7m

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问题:

真核生物成熟的mRNA5′一端具有()

A.7mAppp

B.7mGppp

C.7mCppp

D.7mUppp

E.7mTppp

考点:临床医学检验临床免疫技术临床生化学临床生化学题库
题型:单项选择题
解方程.
X+
7
12
=5
X÷0.5=5.2X-0.2=5.633X=1.3+215-X=2.4
1
4
+X=
3
5
题型:单项选择题

合同可变更,撤销的前提是( )。

A.损害国家利益

B.违反法规

C.当事人提出请求

D.当事人一方违约

题型:单项选择题

阅读理解。

     Stop wasting your time thinking of reasons for your failures and shortcomings. Instead, realize

that the seeds of success were  planted within you when you were born. Only you have the power

to make those seeds grow.

     The seeds, and the power to grow them, are contained in the human mind. Success is a choice

and not a chance. You can be a success if only you make the right choice.

      You cannot be successful without first developing your self esteem(自尊). Your level of

self-esteem is always based on the degree of control that you are able to exercise over yourself,

and thus over your life. People with low self-esteem do not believe that they have any power, or

responsibility for their lives. They are leaves tossed(摇摆) by the winds of chance blown about with

any sudden change in the weather.

      You can exercise control over your life only to the degree that you believe that you are responsible

for whatever happens in your life. Failures think that everything happens by accident while successful

people realize that they are responsible.

     Everything happens as a result of something. If we can identify the cause,we can control the effect.

We are responsible for what we consciously choose to accept and believe. Thoughts and beliefs cause

everything. Our attitudes and actions are a result of habits ingrained in us over a period of time. One

generally rises to the level that one expects. We are responsible for setting our expectations. Our

success depends upon our level of confidence. We are responsible for either reinforcing  (强化) good

habits or kicking bad habits and consciously replacing them with consistently practiced good habits.

      If you associate with positive-thinking people ,you are definitely going to achieve success. On the

contrary, the opposite happens. We are responsible for finding , planting , and  nurturing (培育)   the  

seeds that contain future victory , born from setbacks.

     In short,in all areas of your life, whether they are financial, physical, emotional, or spiritual, you are

 responsible. Once you recognize this , accept it, and firmly believe it,you are on the road to success.

1. People with low self-esteem are compared to leaves because they_________. 

A. are ready to change their minds

B. are easily affected by windy weather

C. don't have the power to face their fate

D. can't exercise control over themselves

2. Losers would think that____________.    

A. success is the result of hard work

B. working hard will lead to success

C. their failure is only because of bad luck

D. they don't make efforts to succeed

3. It can be inferred from Paragraph 5 that____________.   

A. whether we will succeed depends on our attitudes

B. developing confidence is the key to future success

C. thoughts and beliefs are the result of creative mind

D. setting our expectations is essential before taking action

4. The last paragraph serves as ___________.   

A. the proof of the author's points

B. the conclusion of the argument

C. an introduction to another topic

D. a comparison between two views

5. Which is the best title for the text?________.

A. Success is a choice

B. The secrets of success

C. Develop our confidence

D. How to achieve success

题型:单项选择题

桃仁与红花共同的功效是().

A.活血祛瘀

B.化瘀止血

C.利尿消肿

D.润肠通便

E.止咳平喘

题型:单项选择题

患者,男,70岁,腹痛月余,症见:脐周作痛绵绵,时作时止,喜温恶寒,喜按,形寒肢冷,神疲乏力,胃纳不佳,面色不华,大便溏薄,舌淡、苔薄白,脉沉无力。

治法为()

A.消食导滞,理气止痛

B.温中补虚,缓急止痛

C.补气健脾,升清降浊

D.温中健脾,和胃止痛

E.散寒温里,理气止痛

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