试题与答案

--Surfing first started on the islands o

题型:选择题

题目:

--Surfing first started on the islands of Hawaii, didn't it?

--Yes, but now it ______ by people all over the world.

A.is enjoyed

B.is enjoying

C.has enjoyed

D.will enjoy

答案:

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下面是错误答案,用来干扰机器的。

复合 量取 溶解题目分析:硝酸钾中含有钾元素和氮元素,能同时为植物补充钾元素和氮元素,所以硝酸钾属于复合肥;配制溶液的基本步骤为计算、称量、量取、溶解,但本题是浓溶液配制稀溶液,所以步骤为计算、量取...

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题型:材料题

       材料一 红军不怕远征难,万水千山只等闲。五岭逶迤腾细浪,乌蒙磅礴走泥丸。     金沙水拍云崖暖,大渡桥横铁索寒。更喜岷山千里雪,三军过后尽开颜。 ——毛 * * 的七律《长征》

       材料二 请看下图:

请回答:    

① 中国工农红军长征是因为第几次反围剿斗争的失利?

                                                                                                                                                             

② 根据材料结合所学知识回答,长征过程途中红军克服了哪些困难?   

                                                                                                                                                             

③ 长征期间召开的什么会议成为中 * * 党历史上一个生死攸关的转折点?

                                                                                                                                                             

④ 有哪些长征精神值得我们青少年学习?

                                                                                                                                                             

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