采用弹压卸料装置和下出件方式冲裁时，冲压力等于（）、（）、（）之和。 发布时间：2017-07-24 02:21 │ 来源：www.tikuol.com 题型：填空题 问题： 采用弹压卸料装置和下出件方式冲裁时，冲压力等于（）、（）、（）之和。
题型：填空题 “夏商周断代工程”是“九五”期间国家重点科技攻关项目，总目标是制定科学依据的夏商西周三个朝代的年表，目前我们的教材即采用了这一成果。据此，请你推算一下，夏商西周三代各自统治的时间大概为 [ ]A．470年 554年 275年 B．407年 550年 260年 C．450年 554年 275年 D．470年 550年 275年 查看答案
题型：填空题 It has been argued by some that gifted children should be grouped in special classes. The __1____is based on the belief that in regular classes these children are held back in their intellectual (智力的) growth by___2___situations that has designed for the ____3___children.There can be little doubt that___4____classes can help the gifted children to graduate earlier and take their place in life sooner. However, to take these____5____ out of the regular classes was created serious problems.I observed a number of___6___students who were taken out of a special class and placed in___7____class. In the special class, they showed little ability to use their own judgment, relying__8___on their teachers’ directions. In the regular class, having no worry about keeping up, they began to reflect___9___on many problems. Some of which were not on the school program.Many are concerned that gifted children become___10____ and lose interest in learning. However, this___11____is more often from parents and teachers than from students, and some of these___12___simply conclude that special classes should be set up for those who are ___13___. Some top students do feel bored in class, but why they___14_____so goes far beyond the work they have in school. Studies have shown that to be bored is to be anxious. The gifted child who is bored is an___15____ child.小题1:A．principleB．theoryC．argumentsD．classification小题2:A．designingB．groupingC．learningD．living小题3:A．smartB．curiousC．matureD．average小题4:A．regularB．specialC．smallD．creative小题5:A．childrenB．programsC．graduatesD．designs小题6:A．intelligentB．competentC．ordinaryD．independent小题7:A．separateB．regularC．newD．boring小题8:A．speciallyB．slightlyC．wronglyD．heavily小题9:A．directlyB．clearlyC．voluntarilyD．quickly小题10:A．doubtedB．boredC．worriedD．tired小题11:A．concernB．conclusionC．reflectionD．interest小题12:A．studentsB．adultsC．scholarsD．teachers小题13:A．talentedB．worriedC．learnedD．interested小题14:A．believeB．thinkC．sayD．feel小题15:A．outstandingB．intelligentC．anxiousD．ordinary 查看答案
题型：填空题 泰雅紫是古代地中海沿岸出产的一种贵重染料，罗马帝王用法律规定，只有皇族与教主可穿用这种染料染的紫色衣袍．当时人们是从小的紫蜗牛中提取泰雅紫的，制备1.5g泰雅紫需要多达12000只紫蜗牛，现知其结构为如下图所示的含溴有机化合物，下列说法不正确的是 （ ）A．泰雅紫分子的分子式为：C16H8N2Br2O2B．1mol泰雅紫与H2加成最多需9molH2C．泰雅紫属于烃的衍生物D．检验泰雅紫中溴元素可直接加入硝酸银溶液，观察是否有浅黄色沉淀生成 查看答案
