当市场利率降低时，持有附有提前赎回权债券的基金将不能再获得高息收益，而且还会面临再投

一个做直线运动的物体，在t = 5s内速度从v₀ = 12m/s，增加到v= 18m/s，通过的位移是x = 70m，这个物体5s内的平均速度是  ( )

A．14m/s

B．15m/s

C．6m/s

D．无法确定

患者男，60岁，因“进餐后出现持续胸痛伴大汗、恶心2h”来诊。患者既往有糖尿病病史3年，高血压病史12年。查体：BP100/70mmHg，HR120次/min；心电图：V1～V5ST段抬高0.2～0.4mV。

对诊断最有帮助的实验室检查指标是（）

A.CK

B.AST

C.LDH

D.CK-MB

E.ALT

正常心功能运动试验时，EF的绝对值应比静息时增加_______%以上。

Wishing to encourage her young son to make more progress on the piano, a mother took her boy to a Paderewski concert. After they were seated, the mother spotted a friend in the audience and walked down the aisle to greet her. Seizing the opportunity to explore the wonders of the concert hall, the little boy rose and eventually found his way through a door marked “NO ADMITTANCE.” When the house lights dimmed and the concert was about to begin, the mother returned to her seat and discovered that the child was missing.

Suddenly, the curtains parted and spotlights focused on the impressive Steinway on stage. To her horror, the mother saw her little boy sitting at the keyboard, innocently picking out Twinkle, Twinkle Little Star.

At that moment, the great pianist made his entrance, quickly moved to the piano, and whispered in the boy’s ear, “Don’t quit. Keep playing.” Then leaning over, Paderewski reached down with his left hand and began filling in a bass part. Soon his right arm reached around to the other side of the child and he added a melody. Together, the old master and the young beginner transformed a frightening situation into a wonderfully creative experience. The audience was amazed and, as it finished, they cheered.

That’s the way it is in life. What we can accomplish on our own is hardly noteworthy. We try our best, but the results aren’t exactly graceful flowing music. But when we put our trust in the hands of a Greater Power, our life’s work can be truly beautiful. Next time you set out to accomplish great feats, listen carefully. You can hear the voice of the Master, whispering in your ear, “Don’t quit, and keep playing.”

小题1:The reason why the boy went to the piano was that ________.

A．he was encouraged to explore

B．his mother forced him to have a look

C．he was invited by the pianist

D．he was exploring the concert hall小题2:What the famous pianist did at the beginning of the concert showed ________.

A．what a great pianist he was

B．what a skilled pianist he was

C．what an upright man he was

D．what a strong man he was小题3:What did the author really want to tell us in the last paragraph?

A．Not being interrupted by others is important.

B．Life needs one’s own effort combined with guidance and cooperation.

C．It is necessary for us to keep doing everything.

D．It is important for us to get help from a famous person.

人格主要指人所具有的与他人相区别的独特而稳定的思维方式和（）风格

A、培训

B、行为

C、社交

D、工作