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问题 单项选择题

男孩，2岁，阵发性哭闹，果酱样血便，腹部可触及腊肠样肿块，考虑为肠套叠。

早期治疗简便有效的方法是

A．针灸治疗

B．灌肠疗法

C．空气灌肠复位

D．钡剂灌肠复位

E．手术复位

答案

参考答案：C

判断题

对于含有粒料的稳定土及松散性材料不能用环刀法测定现场密度。( )
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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.

58().

A.project 

B.plan 

C.promise 

D.propose
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