在柴油机水冷却系统中,不用水泵的是()。A.蒸发式、自然循环式 B.自然循环式、强制

题型:单项选择题

问题:

在柴油机水冷却系统中,不用水泵的是()。

A.蒸发式、自然循环式

B.自然循环式、强制循环式

C.蒸发式、强制循环式

D.蒸发式、自然循环式、强制循环式

考点:钻井柴油机工钻井柴油机工(初级)钻井柴油机工(初级)题库
题型:单项选择题

哪种利尿药不宜与氨基糖苷类抗生素合用()

A.氨苯蝶啶

B.螺内酯

C.呋塞米

D.氢氯噻嗪

E.环戊噻嗪

题型:单项选择题

房地产开发项目财务评价报表包括基本报表和( )。

A.估算报表

B.损益表

C.辅助报表

D.资产负债表

题型:单项选择题

Harvard student Julie Zauzmer turned 20 on January 22, and her birthday couldn’t have been better: She got to working the overnight shift at the Harvard Square Homeless Shelter.

That might seem an extraordinary act of selflessness for someone turning 20. But there’s increasing evidence that commitment to community service is becoming much more ordinary to today’s young adults.

“Young adults are doing more volunteer service than in any point in history,’’ said Scott Seider, an assistant professor of education at Boston University who studies the civic development of young adults.

At Harvard, the Winthrop Street Homeless Shelter is one of 86 social service programs associated with the Phillips Brooks House Association, which is a student-run nonprofit organization. Students can work with deaf children, bring pets to nursing homes, and prepare Chinese students to become US citizens, and so on.

Volunteerism develops well outside of colleges, too. Applications to AmeriCorps have risen to a very high level, jumping from 91,399 in 2008 to 258,829 in 2010. City Year, which puts young people in high-poverty schools as tutors and mentors for at-risk students, has had a 140 percent increase in applications since its 2007-2008 service year. Citizen Schools, which uses volunteers to work with students in middle schools, has had a 28 percent jump in applicants between 2008 and 2009.

“Most of my friends know it’s their duty to give back before they settle down,’’ said Samantha Wolf, a 23-year-old Boston University graduate serving with City Year in a Mattapan school.

City Year corps member Antonio Gutierrez, 22, graduated last year from Union College in Schenectady, N.Y., and is applying for admission to law schools, but this year he is tutoring and mentoring students at the Blackstone Elementary School in the South End.

“I grew up in similar circumstances,’’ said Gutierrez, who said he was a weak student until enrichment programs changed his academic trajectory (轨迹). Raised by a single mother in low-income housing across the street from City Year’s South End Headquarters, he used to watch the red-jacketed corps members come and go, and decided to become one someday.

小题1:We learn from what Scott Seider says in Paragraph 3 that young people today       .

A.study harder than before

B.do more volunteering than ever before

C.don’t care much about others

D.like to find jobs in their communities小题2:What’s the goal of the program of City Year?

A.It helps to find jobs for college students.

B.It offers shelters to the homeless people.

C.It helps to build schools for poor students.

D.It engages young people to teach at high-poverty schools.小题3:What do we know about Antonio Gutierrez?

A.He wants to give back as a volunteer.

B.He has always been an excellent student.

C.He never expected to become a volunteer.

D.He now works as a teacher.小题4:What would be the best title for the text?

A.Volunteering spirit has disappeared

B.How to become a college student

C.College students learn to give back

D.The real life of young adults today

题型:单项选择题

有关皮片移植,正确的是()

A.皮片切取后的初期收缩,越薄的皮片收缩越重

B.皮片切取后的初期收缩,越厚的皮片收缩越重

C.皮片存活后的后期收缩,越薄的皮片收缩越重

D.皮片存活后的后期收缩,越厚的皮片收缩越重

E.与肢体屈侧移植的皮片相比,伸侧移植的皮片更易后期收缩

题型:单项选择题

库仑法测定每种全硫时,煤燃烧加入的催化剂为()

A.金属W

B.金属Mo

C.三氧化钨WO3

D.二氧化硅SiO2

更多题库