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问题 解答题

四边形是由4条（　　）围成的．

A．线

B．线段

C．直线

D．边

答案

因为由不在同一直线上的四条线段依次首尾相接围成的封闭的平面图形叫四边形；

所以四边形是由四条线段围成的图形；

故选：B．

选择题

光绪二十一年上谕称：“叠据中外臣工，条陈时务，详加披览，采择施行。如修铁路、铸钞币、造机器、开各矿”，要“以恤商惠工为本源”。……清廷上谕：“马关商约于我华民生计，大有关碍，亟宜设法补救以保利权”；“振兴商务，为富强之计，必须讲求工艺，设厂制造，始足以保我利权”。对材料的分析不正确的是（   ）

A．说明清政府采取了允许工商业发展的政策

B．说明清政府已经突破“中体西用”的界限

C．反映了清政府对私营工商业态度变化的原因

D．促进了中国民族资本主义的初步发展
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单项选择题

There has been much speculation about the origin of baseball. In 1907 a special commission decided that the modern game was invented by Abner Doubleday in 1839. One hundred years later the National Baseball Museum was opened to honor Doubleday. Historians, however, disagree about the origin of baseball. Some say that baseball comes from bat-and-ball games of ancient times. It is a matter of record that in the 1700s English boys played a game they called "baseball". Americans have played a kind of baseball since about 1800. At first tile American game had different rules and different names in various parts of the country — "town ball". "rounders", or "one old cat". Youngsters today still play some of these simplified forms of the game.
Baseball did not receive a standard set of rules until 1845, when Alexander Cartwright organized the Knicker-bocker Baseball Club of New York City. The rules Cartwright set up for his nine-player team were widely adopted by other clubs and formed the basis of modem baseball. The game was played on a "diamond" infield with the bases 90 feet apart. The first team to score 21 runs was declared the winner. By 1858 the National Association of Baseball Players was formed with 25 amateur teams. The Cincinnati Red Stockings began to pay players in 1869.

Which of the following is true about the origins of baseball

A. Historians agree that baseball was invented by Abner Doubleday.
B. Baseball, as played in the early 19th century, differed very little from today’s game.
C. As early as the 1700s, English boys played a game called "baseball".
D. The first standard set of baseball rules was established at the turn of the century
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