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问题 单项选择题

患者，女性，51岁，聚餐后半小时突发上腹部持续性刀割样剧痛，伴恶心，未吐。查体：患者全腹压痛、反跳痛、肌紧张，以上腹为甚，腹式呼吸消失，有移动性浊音。初步诊断为

A．胃、十二指肠溃疡急性穿孔
B．胃出血
C．幽门梗阻
D．胃癌
E．急性胃炎

答案

参考答案：A

问答题 简答题

什么是统计预测？
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单项选择题

Tyrus Raymond Cobb was born in Narrows, Georgia in 1886. He grew up in Royston, Georgia with his parents, William and Amanda Cobb. Ty began playing baseball as a child and was a professional baseball player before the age of twenty. Cobb played mostly for the Detroit Tigers and served as their player manager from 1921～1926. He played baseball for a total of twenty-four years before retiring. Cobb won twelve American League batting titles and was known for his great speed and excellent batting skills. He used both of these as weapons on the baseball diamond. Cobb still holds the record as the all-time leading hitter in the major leagues, with a 367 lifetime batting average. His career total of 4 191 hits was the major league record until it was broken by Pete Rose in 1985.
Ty Cobb was elected to the Baseball Hall of Fame in 1936 and was one of the first five players to receive this award. Cobb died in Atlanta, Georgia on July 17, 1961 and will be remembered as the great "Georgia Peach".

What job did Cobb have with the Detroit Tigers from 1921～1926
[A] Banker.
[B] Doctor.
[C] Player manager.
[D] Leader of the League.
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