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问题 单项选择题

支气管哮喘患者伴阵发性室上性心动过速时，可用下列哪种药物治疗（）

A.普萘洛尔（心得安）

B.阿替洛尔（胺酰心安）

C.新斯的明

D.去氧肾上腺素（新福林）

E.洋地黄

答案

参考答案：E

单项选择题

大多数成功的领导得共同采用的领导方式是（）

A.以事为中心的领导方式

B.以人为中心的领导方式

C.集权式领导方式

D.人事并重的领导方式
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单项选择题

The United States has historically had higher rates of marriage than those of other industrialized countries. The current annual marriage (51) in the United States—about 9 new marriages for every 1,000 people—is (52) higher than it is in other industrialized countries. However, marriage is (53) as widespread as it was several decades ago. (54) of American adults who are married (55) from 72 percent in 1970 to 60 percent in 2002. This does not mean that large numbers of people will remain unmarried (56) their lives. Throughout the 20th century, about 90 percent of Americans married at some (57) in their lives. Experts (58) that about the same proportion of today’s young adults will eventually marry.

The timing of marriage has varied (59) over the past century. In 1995 the average age of women in the United States at the time of their first marriage was 25. The average age of men was about 27. Men and women in the United States marry for the first time at an average of five years later than people did in the 1950s. (60) , young adults of the 1950s married younger than did any previous generation in U. S. history.

54().

A.Aproportion 

B.Theproportion 

C.Thenumber 

D.Anumber
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