组合列车

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问题:

组合列车

考点:铁路知识考试铁路行车组织铁路行车组织题库
题型:名词解释

目标管理的特点?

题型:名词解释

在肠外营养支持中,对使用谷氨酰胺制剂的优点表述错误的是()

A.能保护肠黏膜屏障功能

B.在药理剂量作用下可促进胰岛素的分泌

C.缓解应激时谷氨酰胺水平的下降

D.改善机体代谢、氮平衡

E.改善机体免疫状况

题型:名词解释

在井下通过炮烟区时,为避免炮烟中毒,要()迅速通过。

A.憋住呼吸

B.用湿毛巾堵住口鼻

C.佩戴自救器

题型:名词解释

关于切线效果说法,错误的是()

 

A.被照体局部边缘部分与X线束垂直形成

B.胸片锁骨伴随阴影是切线效果

C.胸片上女性 * * 阴影是切线效果

D.胸片上叶间裂的线状阴影是切线效果

E.颅底骨折采用的是X线切线效果

题型:名词解释

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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