医用直热式热敏相机的核心部件是() A.聚集透镜 B.热敏电阻 C.热敏胶片 D.热

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问题:

医用直热式热敏相机的核心部件是()

A.聚集透镜

B.热敏电阻

C.热敏胶片

D.热敏打印头

E.原料物质膜

考点:放射医学(医学高级)放射医学综合复习题放射医学综合复习题题库
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旅游业的经济作用有                                       ( )

A.旅游业在国民经济中发挥着主导作用

B.有了旅游业的发展才有国民经济其他部门的发展

C.有利于国家间、地区间的文化交流

D.旅游业的发展能带动酒店、餐饮、交通运输等第三产业的发展

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国家创制法律的方式有[ ]

①国家制定          ②国家认可           ③公民制定        ④公民认可

A.①②            

B.③④            

C.①③          

D.①④

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润滑油温度上升的处理措施不正确的是()

A.启用油加热器

B.调大冷却水阀门开度

C.调大轴瓦间隙

D.消除油冷器管束污垢层

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In October 1961 at Crowley Field in Cincinnati Ohio, an old deaf gentleman named William E. Hoy stood up to throw the first ball of the World Series. Most people at Crowley Field on that day probably did not remember Hoy because he had retired from professional baseball 58 years earlier in 1903. However he had been an outstanding player and the deaf people still talk about him and his years in baseball.

William E. Hoy was born in Houckstown Ohio on May 23, 1862. He became deaf when he was two years old. He attended the Columbus Ohio School for the deaf. After graduation he started playing baseball while working as a shoemaker.

Hoy began playing professional baseball in 1886 for Oshkosh (Wisconsin) of the Northwestern League. In 1888 he started as an outfielder with the old Washington Senators. His small figure and speed made him an outstanding base runner. He was very good at stealing bases during his career. In the 1888 major league season he stole 82 bases. He was also the Senators’ leading hitter in 1888. Hoy was clever and he threw right-handed and batted left-handed. On June 19, 1889 he threw out three batters at the plate from his outfield position.

The arm signals used by judges today to show balls and strikes began because of Hoy. The judge lifted his right arm to show that the pitch was a strike and his left arm to signal that it was a ball.

For many years people talked about Hoy’s last ball game in 1903. He was playing for Los Angeles of the Pacific Coast Winter League. It was a memorable game because Hoy hit a wonderful ball which won the game. It was a very foggy day and therefore very hard to see the ball. In the ninth inning with two men out, Hoy managed to catch a fly ball to make the third out in spite of the fog. Los Angeles defeated their opposition and won the game.

After he retired, Hoy stayed busy. He ran a dairy farm near Cincinnati for 20 years. He also became a public speaker and traveled giving speeches. Until a few years before his death he took 4~10 mile walks several mornings a week. On December 15, 1961 William Hoy died at the age of 99.

What can be inferred from this passage()

A. Hoy was the greatest baseball player in his time.

B. Speaking and listening are not necessary in baseball games.

C. The judge had to study the hand signals very seriously.

D. Hoy’s family encouraged him to become a baseball player.

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哪些行为被认为是窃电行为?

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