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阅读理解 阅读下面的文章,根据文章内容判断文章后的句子是正确(T)还是错误(F)。(每题10分) COMMUNITY SERVICE Community service is a service or activity which is performed by someone or a group of people for the benefit of the public or public organizations. While volunteers may provide community service, not everyone taking part in a community service program is a volunteer, because not everyone is doing it through their own choice. Sometimes people are asked to do it by: their government, as part of a citizenship requirement instead of military service; the courts and other criminal justice punishments; their school, to meet the requirements of a class, or to meet the requirements of graduation, or, in the case of parents, required to provide a certain number of hours of service in order for their child to be enrolled in a school or sports team. There are also people providing community service, but they receive some form. of payment in return for their work. YOUTH COMMUNITY SERVICE Community service performed by young people, also known as youth service, is intended to strengthen young peoples' senses of civic engagement and community, and to help them achieve their educational, developmental and social goals. HIGH SCHOOL GRADUATION Many educational institutions in the United States require students to perform. community service hours to graduate from high school. In some high schools in Washington State, for example, students must complete 60 hours of community service to receive a diploma. CONDITIONS OF PARTICIPATION Contribution of service is a condition of enrollment in some programs. Most commonly, parents may be required to serve for their child to be enrolled in a school or sports team. COLLEGES Though technically not a requirement, many colleges make community service an unofficial requirement for acceptance. However, some colleges prefer work experience over community service, and some require that their students also participate in community service in order to graduate. 操作提示:句子正确选择下拉选项框为“T”;句子错误选择下拉选项框为“F”。 1. The organizer is the beneficiary of community service. {T; F} 2. Some people who take part in community services are not volunteers. {T; F} 3. Most of the youth who volunteer in community service are motivated by personal purposes. {T; F} 4. In some high schools, students must complete certain hours of community service to receive a diploma. {T; F} 5. Every university considers community service is the most important experience for students among other practices, like internship. {T; F}
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【单选题】( )对定轴转动刚体所做的功,等于刚体转动动能的增量。这一关系称为刚体绕定轴转动的动能定理,简称刚体转动动能定理。
A.
合外力
B.
合外力矩
C.
内力矩
D.
内力
【单选题】构建基因组文库时需要()。
A.
限制性核酸内切酶
B.
核酸外切酶
C.
RNA聚合酶
D.
DNA酶
【多选题】构建基因组文库时需要考虑:
A.
文库的完整性
B.
基因组信息的可重建性
C.
文库的大小
D.
重叠片段的大小
【多选题】构建基因组文库的基本步骤包括
A.
制备基因组DNA并片段化
B.
DNA片段与载体重组连接
C.
重组DNA导入受体细胞
D.
筛选重组子
【单选题】关于青光眼用药不正确的说法有
A.
主要是降低眼压
B.
防止视神经进一步损伤
C.
点药次数并非越多越好
D.
只能单独使用
E.
可采取个体化治疗
【判断题】合外力矩对绕定轴转动的刚体所做的功等于刚体转动动能的增量 ——刚体绕定轴转动的动能定理
A.
正确
B.
错误
【单选题】关于青光眼用药不正确的说法有()
A.
防止视神经进一步损伤
B.
主要是降低眼压
C.
点药次数并非越多越好
D.
只能单独使用
【单选题】下列属于第一手资料的是()
A.
原始记录
B.
期刊资料
C.
网络资料
D.
媒体报道资料
【多选题】构建基因组文库基本步骤主要包括:
A.
提取基因组DNA;
B.
对基因组DNA进行酶切,通过电泳,获得一定长度DNA片段;
C.
将DNA片段连接到载体,构建重组DNA分子;
D.
将重组DNA分子转化到大肠杆菌。
【单选题】构建基因组文库时需要
A.
限制性核酸内切酶
B.
核酸外切酶
C.
RNA聚合酶
D.
DNA酶
E.
RNA酶
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