以下哪些是抵押物保险必须具备的要求（）A、保险期限不短于信贷业务合同履行期限或承诺到

急性心肌梗死（AMI）发作缺少心电图表现时，推荐心肌标志物检测频度是（）

A.入院即刻检查一次，出院前检查一次

B.入院即刻，入院后2小时，第二天清晨，出院时检查

C.入院即刻，入院后4小时，入院后8小时，入院后12小时

D.入院即刻，入院后2小时，入院后4小时，出院时检查

E.入院即刻，入院后每隔2小时检查一次

 Louis Armstrong had two famous nicknames．Some people called him Bagamo．They said his mouth looked like a large bag． Musicians often called him Pops, as a sign of respect for his influence on the world of music．

Born in 1901 in New Orleans, he grew up poor, but lived among great musicians．Jazz was invented in the city a few years before his birth．Armstrong often said, "Jazz and I grew up together．"

Armstrong showed a great talent for music when he was taught to play the cornet (短号) at a boy's home．In his late teens, Armstrong began to live the life of a musician．He played in parades, clubs, and on the steamboats that traveled on the Mississippi River．At that time, New Orleans was famous for the new music of jazz and was home to many great musicians．Armstrong learned from the older musicians and soon became respected as their equal．   

In 1922 he went to Chicago．There, the tale of Louis Armstrong begins．From then until the end of his life, Armstrong was celebrated and loved wherever he went．Armstrong had no equal when it came to playing the American popular song．

His cornet playing had a deep humanity (仁爱) and warmth that caused many listeners to say, "Listening to Pops just makes you feel good all over．" He was the father of the jazz style and also one of the best-known and most admired people in the world．His death, on July 6, 1971, was headline news around the world．

小题1:Armstrong was called Pops because he     ．

A．looked like a musician

B．was a musician of much influence

C．showed an interest in music

D．traveled to play modern music小题2:Which statement about Armstrong is true?

A．His tale begins in New Orleans．

B．He was born before jazz was invented．

C．His music was popular with his listeners．

D．He learned popular music at a boy's home．小题3:Which would be the best title for the text?

A．The Invention of the Jazz Music

B．The Father of the Jazz Style

C．The Making of a Musician

D．The Spread of Popular Music

男性，45岁，有胃溃疡病史10年，近3个月疼痛加剧并失去节律性，伴嗳气，换用多种抑酸药无效。查体：颈部浅表淋巴结无肿大，腹平软，上腹轻压痛，可扪及块状物。

首选的处理方法（）

A.内科药物治疗

B.手术治疗

C.定期复查追踪

D.化疗十支持疗法

E.放疗+对症处理

我国《合同法》在违约责任上采用（）原则。

下列有关密度计的使用注意事项，错误的说法是（）。

A、钻井液杯内，每次用完后应冲洗干净

B、不需要经常用规定的清水校正密度计，每隔10天校正一次即可

C、使用后，密度计的刀口不能放在支架上

D、注意保护水平泡，不能用力碰撞，以免损坏而影响使用