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问题 单项选择题

2007年末全国就业人员76990万人，比上年末增加590万人，其中，第一产业就业人员31444万人，占全国就业人员的40.8%；第二产业20629万人，占26.8%；第三产业24917万人，占32.4%。年末城镇就业人员29350万人，比上年末净增加1040万人。其中，城镇单位就业人员12024万人，比上年末增加311万人：城镇私营个体就业人员7891万人，比上年末增加924万人。在城镇单位就业人员中，在岗职工11427万人，比上年末增加266万人。

以下关于2003～2007年全国就业状况的描述不正确的是（）。

A．2003～2007年间全国就业人员数年均增长率约为0.85%

B．2006年末城镇单位就业人员中在岗职工比重超过95.1%

C．2007年和2003年相比城镇就业人数约增长了14.6%

D．2007年比2005年第一产业就业人数减少4%，绝对量减少3033万人

答案

参考答案：D

解析：

2003～2007年间全国就业人员共增长76990-74432=2558万人，年均增长率为2558÷74432÷4×100%≈0.85%，A项正确；2006年末城镇单位就业人员有12024-311=11713(万人)，其中在岗职工有11427-266=11161万人，在岗职工所占比重为11161÷11713×100%≈95.29%，超过了95.1%，所以B项正确；2007年城镇就业人员有29350万人，2003年有25639万人，前者相对后者增长了(29350-25639)÷25639×100%≈14.5%，C项正确。用排除法可知D项错误。故选D。

选择题
使分式
2
1-3x
的值为正数时x的取值范围（　　）
A．x＞0B．x＞
1
3
C．x＜0D．x＜
1
3
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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 the 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 Knickerbocker 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 modern 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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