传染病的预防措施是（） A.加强水源、饮食、粪便管理 B.消灭蚊蝇及其他传播媒介 C

体重16kg，身长98cm，会自己穿鞋，能唱歌，其年龄约是（）

B.2.5岁

C.3岁

D.3.5岁

E.4岁

某银行个人理财业务人员离开本行到另一家银行从事个人理财业务，根据《银行业从业人员职业操守》，下列做法正确的是( )。

A．将自己在本行开发的客户的信息等资料带到新的岗位

B．与自己在本行开发的客户断绝所有联系

C．带走本行提供的电脑等办公用具

D．保守在本行获知的商业秘密

在页式存储管理中，用户程序的逻辑地址由______和页内地址两部分组成。

医师在执业活动中，有下列行为之一的，由县级以上人民政府卫生行政部门给予警告或者责令暂停执业活动的时间是（）

A.6个月以下

B.6个月以上

C.3个月以下

D.3个月以上6个月以下

E.6个月以上1年以下

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.

The tone of the passage is________.

A．persuasive

B．informative

C．biased

D．argumentative