【简答题】口服抗菌药利君沙的制备原料G和某种广泛应用于电子电器等领域的高分子化合物I的合成路线如下: (1)A的结构简式是______,A→B的反应类型是________,D中官能团的名称__________。 (2)写出E→F的反应方程式_______________。 (3)H的分子式为C 8 H 6 O 4 ,能与碳酸钠溶液反应放出气体,其一氯代物只有一种,写出E+H→I的反应方程式_________...
【判断题】市场营销组合策略主要包括产品策略、定价策略、分销渠道策略和促销策略。
【单选题】A bought computer equipment on 1 January 20X0 for $24,000 and estimated that it would have a useful life of five years and a residual value of $2,000. Depreciation policy is the straight line method. ...
【简答题】Mom makes me eat an apple every day ________ healthy. A. keeps B. is kept C. to keep D. kept 2.After the students learnt the text "Hot Tips for August 2040", the teacher kept them ________________ wha...
【单选题】在HTML中, 中的method表示( )
【简答题】Section B Directions : There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You ...
【简答题】非营利组织营销组合策略主要包括_______、_______、_______、_______。