一商贸集团从天津采购了2000吨食盐运往上海，最为合理的交通运输方式是（  ）

作文：

      心愿像一粒种子，播种在心的土壤里，尽管它渺小，却可以开出最美的花朵。心愿，像一条小溪，流淌在爱的大地上，尽管它涓细，却可以浇灌绿色的希望。

      请以“心愿”为题写一篇记叙文，可以是关于自己的，也可以是关于亲人的、朋友的故事。

      要求：①根据写作的内容和表达的中心，合理安排文章的详略和描写方法；②关注记叙中的议论和抒情；③不得套做和抄袭；④字数不少于600字。

如图，在四棱锥P﹣ABCD中，底面ABCD为等腰梯形，AD∥BC，PA=AB=BC=CD=2，PD=2 $\sqrt{3}$ ，PA⊥PD，Q为PD的中点．

（Ⅰ）证明：CQ∥平面PAB；

（Ⅱ）若平面PAD⊥底面ABCD，求直线PD与平面AQC所成角的正弦值．

阅读下面材料，在空白处填入适当的内容（一个单词）或括号内单词的正确形式。答案写在答题卷上。
    Are you facing a situation that looks impossible to fix?
    In 1969, the pollution was terrible along the Cuyahoga River near Cleveland, Ohio. It ____ (be) unimaginable that it could ever be cleaned up. The river was so polluted that it ____ (actual) caught fire and burned. Now, years later, this river is one of ____ most outstanding examples of environmental cleanup.
    But the river wasn't changed in a few days ____ even a few months. It took years of work ____ (reduce) the industrial pollution and clean the water . Finally, that hard work paid off and now the water in the river is ____ (clean) than ever.
    Maybe you are facing an impossible situation. Maybe you have a habit ____ is driving your family crazy. Possibly you drink too much or don't know how to control your credit card( 信用卡) use. When you face such an impossible situation, don't you want a quick fix and something to change immediately?
    While there are ____ (amaze) stories of instant transformation(转变)，for most of us the ____ (change) are gradual and require a lot of effort and work, like cleaning up a polluted river. Just be ____ (patience)

If your answer is “Yes”, please call Alan _________ 567-3928.