液压自动绞缆机液压系统有的采用大、小液压泵，是为了（）。

[单选题]Passage1In recent years，however，society has come to understand the limitations of schools that merely sort and rank students. We have discovered that students in the bottom one-third to one-half of the rank order-plus all who drop out before being ranked-fail to develop the foundational reading，writing，and mathematical proficiencies needed to survive in，let alone contribute to，an increasingly technically complex and ethnically diverse culture. So today，in asking schools to leave no child behind，society is asking that educators raise up the bottom of the rank-order distribution to a specified level of competence. We call those expectations our "academic achievement standards".Every state has them，and，as a matter of public policy，schools are to be held accountable for making sure that all students meet them.To be clear，the mission of sorting has not been eliminated from the schooling process. Forthe foreseeable future, students will still be ranked at the end of high school. However, society now dictates that such a celebration of differences in amount learned must start at a certain minimum level of achievement for all.The implications of this change in mission for the role of assessment are profound. Assessment and grading procedures designed to permit only a few students to succeed (those at the top of the rank-order distribution) must now be revised to permit the possibility that all students could succeed at some appropriate level. Furthermore, procedures that permitted (perhaps even encouraged) some students to give up in hopelessness and to stop trying must now be replaced by others that promote hope and continuous effort. In short, the entire emotional environment surrounding the prospect of being evaluated must change, especially for perennial low achievers.The students' mission is no longer merely to beat other students in the achievement race. At least part of their goal must be to become competent. Teachers must believe that all students can achieve a certain level of academic success, must bring all of their students to believe this of themselves, must accommodate the fact that students learn at different rates by making use of differentiated instruction, and must guide all students toward the attainment of standards.The driving dynamic force for students cannot merely be competition for an artificial scarcity of success. Because all students can and must succeed in meeting standards, cooperation and collaboration must come into play. The driving forces must be confidence, optimism, and persistence-for all, not just for some. All students must come to believe that they can succeed at learning if they try. They must have continuous access to evidence of what they believe to be credible academic success, however small. This new understanding has spawned increased interest in formative assessment in recent years.Which is meant by the author about the emotional promise of assessment for students？

[单选题]治疗吐泻转筋的药物是（）。

[单选题]用葡聚糖凝胶色谱分离下列化合物，最先被洗脱流下来的是（）

[单选题]母亲带3个月的正常婴儿进行体格检查。其语言的能力有（）

[填空题]鸡白痢的病原体是（）

[问答题]什么是通过运行时分？

[判断题]在Windows中任务栏上“输入法”图标的出现与“控制面板”上“输入法”的设定有关。

[单选题]危重新生儿的监护对象包括以下哪项（）。

[问答题]湿型中常加煤粉能起哪些作用？为什么铸钢件用湿型砂中不加煤粉？

[单选题]在硬质玻璃容器中可进行加热的溶液是（）

[单选题]液压自动绞缆机液压系统有的采用大、小液压泵，是为了（）。

[单选题]液压自动绞缆机液压系统有的采用大、小液压泵，是为了（）。

[单选题]具有大、小液压泵的自动绞缆机在正常收、放缆时（）。

[单选题]具有大、小液压泵的自动绞缆机在正常收、放缆时（）。

[单选题]液压自动绞缆机一般是自动控制（）。

[单选题]液压自动绞缆机一般是自动控制（）。

[单选题]下列叙述中哪2个是正确的（）。 （1）液压电梯下行方向阀应由电控保持开启。下行方向阀的关闭应由来自液压缸的液体压力作用以及至少每阀由一个导向压缩弹簧来实现 （2...

[填空题]烃类液压油中HL、HM、HR、HG、HV是（）型液压油，HS是合成烃型液压油。

[填空题]HS合成低温液压油是以合成烃为（）的液压油，有比HV液压油更低的低温粘度。

[判断题]液压泵的容积效率与液压泵的泄漏量有关，而与液压泵的转速无关。