经 * * 前列腺电切术不慎造成真性尿失禁主要为 * * 哪一部位损伤（） A. * * 外口狭窄 B

The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1920’s. In the 1920’s, but especially (1) the Depression of the 1930’s, the United States experienced a (2) birth rate. Then with the prosperity (3) on by the Second World War and the economic boom that followed it, young people married and (4) households earlier and began to (5) larger families than had their (6) during the Depression. Birth rates rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. (7) economics was probably the most important (8) , it is not the only explanation for the baby boom. The increased value placed (9) the idea of the family also helps to (10) this rise in birth rates. The baby boomers began streaming (11) the first grade by the mid-1940’s and became a (12) by 1950. The public school system suddenly found itself (13) The wartime economy meant that few new schools were buih between 1940 and 1945. (14) , large numbers of teachers left their profession during that period for better-paying jobs elsewhere.

(15) , in the 1950’s, the baby boom hit an antiquated and inadequate school system. Consequently, the custodial rhetoric of the 1930’s no longer made (16) ; keeping youths ages sixteen and older out of the labor market by keeping them in school could no longer be a high (17) for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators (18) turned toward the lower grades and back to basic academic skills and (19) . The system no longer had much (20) in offering nontraditional, new, and extra services to older youths.

18().

A. refutably

B. indispensably

C. inevitably

D. respectively

有以下程序：
#include ＜stdio.h＞
void f(int n, int *r)
int r1=0;
if (n%3==0) r1=n/3;
else if (n%5==0) r1=n/5;
else f(--n, ＆r1);
*r=r1;

main()
int m=7, r;
fm, ＆r); printf("%d\n", r);

程序运行后的输出结果是( )。

A) 2
B) 1
C) 3
D) 0

党的十七大报告指出，科学发展观，是对党的三代中央领导集体关于发展的重要思想的继承和发展，是马克思主义关于发展的世界观和方法论的集中体现，是同马克思列宁主义、毛 * * 思想、邓 * * 理论和“三个代表”重要思想既一脉相承又与时俱进的科学理论，是我国经济社会发展的重要指导方针，是发展中国特色社会主义必须坚持和贯彻的重大战略思想。科学发展观，是立足社会主义初级阶段基本国情，总结我国发展实践，借鉴国外发展经验，适应新的发展要求提出来的。
请回答：

运用马克思主义哲学原理说明科学发展观是马克思主义关于发展的世界观和方法论的集中体现。

为什么说完全竞争市场是最有效率的市场？

插削连杆外圆弧前，必须用百分表找正小端内孔中心与插床工作台回转中心重合。