加氢助催化剂的作用为()。A、仅能改变催化剂活性和提高其稳定性B、仅对不希望发生的副

题型:单项选择题

问题:

加氢助催化剂的作用为()。

A、仅能改变催化剂活性和提高其稳定性

B、仅对不希望发生的副反应有抑制作用

C、能改变催化剂活性和提高其稳定性、同时对不希望发生的副反应有抑制作用

考点:加氢精制工考试加氢精制工考试题库
题型:单项选择题

网民都生活在现实社会当中,生活的诸多问题、情绪、诉求、愿景都会在网络上强烈反应出来。网络既是社会情绪的减压阀又是社会危机的放大器。2014年全国两会召开前的网络民意调查显示,全面深化改革方案如何“落子”,国家治理体系和治理能力现代化怎样推进,如何消除百姓“心肺之患”,如何守护“舌尖上的安全”等热点问题备受关注。对此,政府应该(  )

①善用网络监督渠道,有序反映社情民意 ②着力解决现实难题,提高服务民生能力

③善于倾听网络民声,提高舆情引导能力 ④净化规范网络环境,完善网络管理监督

A.①②③

B.①②④

C.①③④

D.②③④

题型:单项选择题

贷款发放的原则包括( )。

A.计划、比例放款原则

B.进度放款原则

C.资本金足额原则

D.获利原则

E.风险最低原则

题型:单项选择题

The teaching of English as a second language (ESL) in schools has had a history of conflicting arguments, interesting innovations and some very positive methodological changes. To understand the present situation, it is necessary to consider the past and the wider educational context which has a hearing on it.

Until quite recently, approaches to ESL work have been ply influenced by methods developed to teach English as a foreign language to older learners. These methods placed much emphasis on drills, exercises and remedial programs that focus on language in abstraction. 46) The prescriptive nature of such methods and the demands they made on the teacher’s time developed the belief that ESL work could be tackled only by the specialist ESL teacher working with small groups of children. Such an approach does not fit comfortably into current notions of learning and teaching in the primary school, nor does it sufficiently equip ESL learners in the secondary school to benefit from normal schooling. 47) In prescribing what language is to be taught, it has ignored what children bring to the learning task and the choices they make about how and what they want to learn. Furthermore, the location and organization of language provision did not measure up to the demand. 48)The language centers and English language services all contributed to providing special and concentrated teaching of English as a second language in small groups, varying in size from four or five to fifteen. Whatever the pattern of provision, the main aim was to give pupils sufficient English to enable them to join normal schools as quickly as possible. The success of such special provision depended very much on the close and constant liaison of language teachers with the subject teachers and the class teachers and on the continuity of learning experiences provided by them. 49)One of the important disadvantages of language centers and withdrawal groups was that ESL children were being taught away from those English -speakers who provide the most powerful models, i. e. their peer group. Peer-group interaction is an important element in any learning situation, but its particular strengths in a classroom with ESL learners cannot be overemphasized.

50) The separation of second language learners from the mainstream classroom cannot easily be justified on educational grounds, since in practice it leads to both their curriculum and language learning being impoverished.

Notes: context 环境。bear on 对......有影响,关系到...... 。例如:I don’t see how this bears on the matter. (我不明白这一点与那些事的关系。)liaison n. 联结。liaison of A with A与B之间的联系。

50) The separation of second language learners from the mainstream classroom cannot easily be justified on educational grounds, since in practice it leads to both their curriculum and language learning being impoverished.

题型:单项选择题

以托幼机构和中小学校为单位,所有在托(校)儿童(学生)预防接种证查验率、建证率、建卡率均达到()

A、85%

B、90%

C、95%

D、100%

题型:单项选择题

()就是用于扩张分离金属和非金属结构及障碍物的破拆工具。

A.液压扩张器

B.切割机

C.排烟机

D.液压剪

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