女性，32岁。因不明原因发热2周来院门诊。体检：心脏有杂音。拟诊感染性心内膜炎入院。

阅读理解。

    On my first day of high school, I saw a boy from my class walking back home after

school. His name was David. He was carrying his books. As I was walking, I saw a group

of kids running toward him, knocking all his books out of his hands. And then they ran

away. David fell down and his glasses went flying. He looked up and I saw sadness in his

eyes. I helped him to look for his glasses and said. "The kids with bad manners should be

punished." There was a big smile that showed real gratitude (感激) on his face.

    From then on, we became friends. The more I got to know David, the more I liked him.

Over the next four years, we always studied, played together and had a happy time.

    On graduation (毕业) day, I could see that he was nervous about his speech. So I said,

"Hey, you will be the best!" Then he began, "Graduation is a time to thank those who

helped you succeed through those difficult years. Our parents, our teachers, but mostly

our friends. Being a friend to someone is the best gift you can give them. I'll tell you

a story…" I just looked at the handsome popular boy in amazement as he told the story of

the first day we met.

    Everyone was surprised to hear all about his hardest moment. I saw his Mom and Dad

looking at me and smiling that same thankful smile. Not until that moment did I realize

its deep meaning.

    Never underestimate (低估) the power of your actions. With one small action, you can

change a persons life. As you can see, friends are angels (天使) to make us rise when our

wings (翅膀) have problems flying.

根据短文内容判断正、误。 正确的填“A”，错误的填“B”。

( )1. The writer and David were classmates.

( )2. The kids with bad manners were punished by the writer when they knocked David 

          down.

( )3. Everyone was surprised to hear all about David'S hardest moment.

( )4. The writer realized that one small action could change a person'S life before 

          hearing David's speech.

( )5. The underlined sentence at the end of the passage means "A friend in need is a

          friend indeed (真正地)."

既用治湿热黄疸，又可治骨蒸劳热、盗汗的药物是（）

A.知母

B.龙胆草

C.黄芩

D.苦参

E.黄柏

一木块的体积是150厘米³，放入煤油中漂浮，静止时有

3

5

体积浸在煤油中，（ρ_油=0.8×10³千克/米³）求

（1）木块漂浮时受到的浮力？

（2）木块的重力？

（3）木块的密度？

（4）木块全部浸入煤油中受到的浮力？

（5）至少用多大压力可使木块全部浸入煤油中？（g=10牛/千克）

某监狱的监管人员胡某指使被监管人李某殴打、虐待同监室的被监管人马某，并导致马某重伤，胡某构成（）。

A.虐待被监管人罪

B.故意伤害罪

C.滥用职权罪

D.虐待被监管人罪和故意伤害罪数罪并罚

燃油设备检修开工前，检修工作检修工作（）和当值（）人员必须共同将被检修设备与运行系统可靠地（），在与系统、油罐、卸油沟连接处加装堵板，并对被检修设备进行有效地冲洗和换气，测定设备冲洗换气后的气体浓度。