低钾血症的病人，补钾后病情仍无改善时，应首先考虑缺乏A．镁 B．磷 C．钠 D．氯

（3分）右图是根尖的结构图，请据图回答下列问题：

在根尖结构中，具有保护作用的是D     ；细胞始终保持分裂能力的部位是C        ；吸收水分和无机盐的主要部位是A                  。

（）承保被保险人在固定场所进行生产、经营或其他活动时，因发生意外事故而造成的他人财产损失或人身伤亡，依法应由被保险人承担的经济赔偿责任。

A.公众责任保险

B.产品责任保险

C.雇主责任保险

D.职业责任保险

信息匹配

A. The Development of an Early Union.

B. Support from the Public.

C. The Decline of an Early Union.

D. A Brief Comparison between the Union and the Medieval Craft Guilds.

E. Management's Reaction to the Labour Movement.

F. Reasons for starting a Union.

1. _____

     Some scholars have associated trade unions with the medieval craft guilds (中世纪的行会), but

there are important differences between the two.The guild members were masters craftsmen who owned

capital and often employed workers.Unions are known as associations of workers with similar skills.

2. _____

     In the past, individual worker had no control over the conditions of their working lives; political and

economic power was concentrated in the hands of wealthy business owners.Workers found, however,

that there was strength in uniting.From their earliest years, union objectives have been higher wages and

improved working conditions.

3._____

     Employers resisted, of course.They made great efforts to stop union organizing its activities.Union

members were fired, workers were forced to sign contracts in which they promised not to join a union,

and companies hired strikebreakers (罢工破坏者) and even gunmen to frighten organizers.

4._____

     One of the earliest successful labour organizations in the United States was the Knights of Labour,

founded in 1869.The Knights, which included both skilled and unskilled workers, attempted to organize

all workers into one great union.After it successfully struck the Wabash railroad owned by Jay Gould in

1885, its popularity and power grew dramatically.In 1886 the Knights had 700,000 members.

5._____

     The decline of the Knights of Labour, however, came quickly.The strike against Gould was gradually

broken, and the Knights radical positions on social issues cost them public support.In the end, a lack of

unity as well as the rapid inflow of unskilled immigrants weakened the union's economic power, and the

organization came to an end.

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