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Basic Math introduces students to the basic things of mathematics, as well as some easy methods of learning it. These 30 fantastic courses are designed to provide students with understanding of arithmetic and to prepare them for Algebra (代数) and beyond. The lessons in Basic Math cover every basic field of arithmetic. They also look into exponents (指数), the order of operations, and square roots. In addition to that, students also discover how a particular mathematical topic relates to other branches , and how they can be used practically. Basic Math starts from easier concepts and gradually moves on to the more troublesome ones.  The lectures offer students the chance to understand of mathematical knowledge that may have seemed so frightening. They also help students prepare for college mathematics and develop confidence in this amazing field of study. With the help of these lectures, they will be able to clear away the mystery (神秘性) of mathematics and face their studies with more confidence than they ever imagined. Besides, they will strengthen their ability to accept new and exciting mathematical challenges. Professor H. Siegel, honored by Kentucky Educational Television as 'the best math teacher in America, ' is a devoted teacher and has a gift for explaining mathematical concepts in clear and interesting ways. From the basic ideas to the more difficult problems, he is a master in making math lectures learner-friendlier and less frightening With a PhD in Mathematics Education form Georgia State University, Dr. Siegel now teaches mathematics at Central Arizona College. If the course fails to provide complete satisfaction to you, you can easily exchange it for any other course that we offer. Or you can get your money back. 小题1:What does the course Basic Math mainly cover? A.Algebra B.College Mathematics C.Arithmetic D.Mathematics Education 小题2: What good things can students expect from Basic Math? A.Stronger imagination ability. B.Additional presentation skills. C.More mathematical confidence. D.Greater chances of becoming teachers. 小题3:What can we learn about Professor H. Siegel? A.He is a lecturer at Kentucky Educational Television. B.He is delivering 30 lectures in Basic Math. C.He works in Georgia State University. D.He specializes in training teachers. 小题4:Where is the passage most likely to have been taken from? A.news report B.A book review C.A lesson plan D.An advertisement
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【简答题】在公共场所有如下广告: 化肥广告 国际首创优质化肥:碳酸氢铵(NH 4 HCO 3 ) 氮含量全球最高:(24.1%) 请回答下列问题: (1)该化肥中所含的植物营养元素是______. (2)证明该化肥是氮肥的实验步骤是:______. (3)NH 4 HCO 3 中氮元素的质量分数是______,该广告宣称其氮含量是______,因此,这是一则______(填真实或虚假)广告.(计算结果精确到...
【单选题】下列四种肥料氮含量最高的是()
A.
碳酸氢铵
B.
尿素
C.
硫酸铵
D.
氯化铵
【单选题】碳酸氢铵、硫酸铵、硝酸铵、尿素这几种氮肥中,含氮量最高的是()
A.
碳酸氢铵
B.
硫酸铵
C.
硝酸铵
D.
尿素
【判断题】含氮量最高的氮肥是碳酸氢铵。
A.
正确
B.
错误
【单选题】推定交货原理的实质就是( ) , 以货物单据代表货物所有权,常称为以单代物。
A.
货物实物化
B.
货物单据化
C.
一手交钱一手交货
D.
赊销
【简答题】农村常用的氮肥有硫酸铵、硝酸铵、碳酸氢铵、氯化铵、尿素等多种,它们的性价比各不相同.氮肥的性价比越大,氮肥的肥效越高.[注:氮肥的性价比为1kg氮肥中含氮元素的质量(g)跟1kg该氮肥的价格(元)之比]请你以“不同氮肥的性价比”作为研究课题,并回答如下问题. (1)简要列出你进行该课题研究的实验步骤.______. (2)该课题最终的成果形式是:______.
【简答题】推定交货原理的实质就是 ,以货物单据代表货物所有权,常称为以单代物。
【简答题】在公共场所有如下广告: 化肥广告 国际首创 优质化肥:碳酸氢铵(NH 4 HCO 3 ) 氮含量全球最高:(24.1%) 请回答下列问题: (1) NH 4 HCO 3 中氮元素的质量分数是 , (2)该广告宣称其氮含量是 ,因此,这是一则 (填真实或虚假)广告。(计算结果精确到0.1%)
【简答题】推定交货原理的实质就是 ,以货物单据代表货物 ,常称为以单代物。
【简答题】在某公共场所张贴有以下广告: 化肥广告 -----国际首创----- 优质化肥:碳酸氢铵( ) 含氮量全球最高:(24.1%) 请回答下列问题: (1)该化肥中的碳酸氢铵的相对分子质量为(不要求计算过程,下同)__________________; (2)该化肥碳酸氢铵中各元素的质量比为氮元素:氢元素:碳元素:氧元素=_________∶_________∶_________∶_________;...
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