中间体

[单选题]Passage1Teaching children to read well from the start is the most important task of elementary schools.But relying on educators to approach this task correctly can be a great mistake. Many schools continue to employ instructional methods that have been proven inefective. The staying power of the "look-say"or "whole-word"method of teaching beginning reading is perhaps the most flagrant example of this failure to instruct effectively.The whole-word approach to reading stresses the meaning of words over the meaning of letters, thinking over decoding, developing a sight vocabulary of familiar words over developing the ability to unlock the pronunciation of unfamiliar words. It fits in with the self-directed," learning how to learn" activities recommended by advocates of "open" classrooms and with the concept that children have to be developmentally ready to begin reading. Before 1963, no major publisher put out anything but these" Run-Spot-Run" readers.However, in 1955, Rudolf Flesch touched off what has been called "the great debate"in beginning reading. In his best-seller Why Johnny Can't Read, Flesch indicted the nation's public schools for miseducating students by using the look-say method. He said-and more scholarly studies by Jeane Chall and Rovert Dyksta later confirmed-that another approach to beginning reading, founded on phonics, is far superior.Systematic phonics first teaches children to associate letters and letter combinations with sounds; it then teaches them how to blend these sounds together to make words. Rather than building up a relatively limited vocabulary of memorized words, it imparts a code by which the pronunciations of the vast majority of the most common words in the English language can be learned. Phonics does not devalue the importance of thinking about the meaning of words and sentences; it simply recognizes that decoding is the logical and necessary first step.According to the author, which of the following statements is true?

[单选题]在古代社会，“才高八斗”“学富五车”体现的是教师的（　　）。

[单选题]线路发生故障，当设有固定信号机时，应先使其显示（）。

[多选题]依我国《对外贸易法》，我国对外贸易主管部门可以启动对外贸易调查的事项包含的是下列哪些选项?（　）

[判断题]政党是一个历史范畴。

[单选题]以当归为君药的方剂是（）。

[单选题]某女，确诊肺炎4天，高热骤降，大汗肢冷，颜面苍白，呼吸急迫，四肢厥冷，唇甲青紫，神志恍惚，舌淡青紫，脉微欲绝。治疗应首选的方剂是（）

[判断题]地损及水文地损损失属于采区损失。

[判断题]耳源性脑脓肿的形成一般分为3个阶段：局限性脑炎期、化脓期和包膜形成期

[单选题]下列疾病中可通过血液检查确诊，除外（）

[单选题]下列反应的中间体是（）。

[名词解释题]中间体

[名词解释题]midbody 中间体

[单选题]货车厂修时120阀中间体检修：中间体外壁必须清除锈垢，内腔和气路用压缩空气吹扫，并用600Kpa以上风压试验，各型腔、气路间不得串通和泄漏，各堵不得泄露，内壁漏...

[单选题]货车厂修时120阀中间体检修：中间体外壁必须清除锈垢，内腔和气路用压缩空气吹扫，并用600Kpa以上风压试验，各型腔、气路间不得串通和泄漏，各堵不得泄露，内壁漏...

[名词解释题]分叉中间体

[名词解释题]网络中间体

[名词解释题]染料中间体

[问答题]写出直接耐晒黑G（C.I.Direct Black 19）的合成路线和所用中间体。

[多选题]120型阀的中间体是用来安装主阀的紧急阀，并用4个M20的螺栓和螺母将整个阀吊装在车辆底架上。还起连通（）各个气路的作用。