()型船首广泛被采用于顶推船上。 A.直立 B.前倾 C.平头 D.球鼻

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问题:

()型船首广泛被采用于顶推船上。

A.直立

B.前倾

C.平头

D.球鼻

考点:水路交通运输技能考试三等造船考试三等造船考试题库
题型:单项选择题

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.

9().

A. at

B. on

C. for

D. with

题型:单项选择题

可以一台设备实现混合、制粒、干燥工艺的有()

A.挤出造粒

B.干法制粒

C.流化制粒

D.摇摆制粒

题型:单项选择题

建筑地面工程应严格控制各构造层的厚度,下列关于建筑地面工程厚度控制叙述不正确的是( )

A.水泥混凝土垫层厚度不应小于60mm
B.水泥砂浆面层厚度不应小于25mm
C.水磨石面层的厚度宜为12~18mm
D.防油渗涂料面层厚度宜为5~7mm

题型:单项选择题

新课程中的学生观要求()。

A.学生是发展的人

B.学生是独特的人

C.学生是具有独立意义的人

D.学生是受教育的人

E.学生是主动学习的人

题型:单项选择题

首位在其参加的历届奥运会上共获得九枚金牌的运动员是?()

A.努尔米

B.刘易斯

C.施皮茨

D.欧文斯

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