急性炎症性脱髓鞘性多发性神经根神经病()糖尿病所致多发性神经病()A．四肢末梢痛觉下

输精管穿刺后，推进药液时，输精管突然膨胀、变硬和压力增高

A．脆性感
B．失落感
C．积气征
D．尿意感
E．冲动感以上几种感觉在输精管粘堵术中哪一步骤出现

工字钢的号数表示高度的毫米数。( )

为了加入到邮件列表中的用户的正确性，通常网站系统会向每个添加的E-mail地址发一封订阅确认信，用户接受到订阅确认信并进行回复，才会加入列表，这种方式称为（）

A.公开

B.封闭

C.管制

D.审批

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.

4（）

A.adopted

B.incorporated

C.administered

D.established